The official magazine of the ISTT - Trenchless International

In this issue | Russia | US | South Africa | Germany | Canada | Spain | Poland | Australia | UK
Ring
ofFire
HDD
Relining options
CIPP
January 2012
Issue 14
The official magazine of the ISTT

H e r r e n K n e c H T A G | u T I l I T y T u n n e l l I n G | T r A F F I c T u n n e l l I n G
MEGA RIGS FROM HERRENKNECHT.
H K 5 0 0 T
MACHINE DATA
Max. push and pull force: 500t
Max. torque: 140kNm
Weight: 45.5t
Power pack: 2x 480kW
China is constantly extending its supply of natural gas. A gas pipeline with a length of around
4,000 kilometers crosses the entire country. Currently, a second, almost 5,000 kilometer long
gas pipeline is rapidly being built. After its completion, a volume of 30 billion cubic meters of
gas will be transported annually from Horgos in the west to the region surrounding the multimillion-strong
cities of Shanghai, Guangzhou and Hong Kong in the east.
For the first time, a 500 tonne Herrenknecht Mega HDD Rig was ordered for various
pipeline crossings.
The trailer-based rig employs push and pull forces of 500 tonnes, reaching a maximum
torque of 140 Kilonewton meters. No HDD rig built by Herrenknecht has achieved such forces
so far.
The rig is no heavyweight despite its impressive dimensions. The weight-optimized
machine weighs only 45.5 tonnes and can thus be transported easily by ship and truck to
jobsites all over the world.
Herrenknecht AG
D-77963 Schwanau
Phone+ 49 7824 302-0
Fax + 49 7824 3403
hdd@herrenknecht.com
www.herrenknecht.com

Sam Ariaratnam
Istt Chairman
Welcome to 2012! I wish you all a
prosperous New Year and hope that the
holiday season was enjoyable for you
and your family. This past year was very
fruitful for the ISTT with a majority of our
Affiliated Societies engaged in various
activities. Reflecting on 2011, we had an
extremely successful 29 th International
No-Dig Conference & Exhibition, held in
Berlin and hosted by the German Society for
Trenchless Technology (GSTT).
The year 2012 will be filled with a number
of trenchless events leading up to the
30 th International No-Dig Conference and
Exhibition next November to be held in
Sao Paulo, Brazil. Planning for the first ever
International No-Dig in South America is well
underway with the Associação Brasileira
de Tecnologia não Destrutiva (ABRATT)
doing an excellent job in soliciting major
sponsorships and exhibitors. I can hardly
wait for the event!
This past quarter, I put on thousands of air
miles attending events on three continents:
Australia, Asia, and Europe. October was
especially busy for me with three events
occurring during the month. In early
October, I attended No-Dig Down Under
2011 in Brisbane, Australia. The event was
extremely successful with 67 exhibitors and
over 1,000 attendees. I had the opportunity
to deliver a pre-conference course on
HDD, which was attended by 18 people.
The technical sessions were well attended
and contained papers mainly from Australia
and New Zealand. Dr Tom Iseley delivered the
keynote address. The event was highlighted
by a river cruise along the Brisbane River
and a wonderful gala dinner at the Victoria
Golf Complex. Famous Australian cricketer
and announcer Kerry O’Keefe served as the
guest speaker. Although, I personally did not
understand most of his jokes and stories,
he was quite entertaining. Once again,
the Australasian Society for Trenchless
Technology (ASTT) should be commended
for hosting an outstanding event. No-Dig
Down Under 2011 was also the launch event
for the ASTT’s 20 th Anniversary book. The
book truly captures the remarkable growth
of the trenchless industry in the Australasian
region. Well done! In 2013 the ISTT No-Dig
show will be held in Sydney – put it in
your calendar.
Dr Dec Downey and I attended Trenchless
Middle East 2011, held in Dubai, UAE.
Although the country’s unprecedented
growth has cooled off in recent years,
the conference grew in size from the last
event. There were over 60 exhibitors and
14 technical papers. Dr Downey delivered
the keynote address titled, Cured in Place
Pipe: Where are we now and where do we
go from here. I had the opportunity to meet
numerous people from the region and even
signed up a few new ISTT members. The
next step is to establish an Affiliated Society
in the region.
During the last week of October, I attended
the 2011 International Conference on
Pipelines and Trenchless Technology
(ICPTT) in Beijing, China. This event was
co-sponsored by the American Society
of Civil Engineers (ASCE) and involved
over 250 peer-reviewed papers. Dr Tom
Iseley delivered an inspirational and
thought-provoking keynote address titled,
Green Strategic Asset Management
Approaches for Buried Treasures. John
Hemphill, Derek Choi and Ray Sterling
also attended the conference as ISTT
representatives. Prior to the conference,
the 13 th International Trenchless Technology
Research Colloquium (ITTRC) was held at a
beautiful resort on the outskirts of Beijing.
Baosong Ma from the China University
of Geosciences (Wuhan) was the local
host of the event co-sponsored by the
ISTT. Dr Ma and his team of graduate
students were outstanding hosts. In total,
35 researchers attended from China,
Canada, Germany, Taiwan, Belgium, United
Kingdom, and the United States. The group
discussed trenchless research activities and
potential collaborations. A memorable trip
to the famous Great Wall of China was
part of the colloquium activities. Several
researchers even made the trek up and
down the wall. The 14 th ITTRC will be held in
Niagara Falls, Canada next June prior to the
2012 Underground Infrastructure Research
(UIR) Conference.
In November, John Hemphill, Derek Choi,
and I attended the No-Dig Turkey Summit
in Istanbul hosted by the Turkish Society for
Infrastructure and Trenchless Technologies
(TSITT). I was particularly pleased to meet
various government officials who attended
the event. I participated in a panel discussion
and also spoke at a HDD training seminar
on the second day of the event. As a new
society, TSITT is doing a remarkable job of
promoting Trenchless Technology.
This next quarter is fairly light in terms of
regional events with only the 2012 No-Dig
Conference & Exhibition hosted by the North
American Society for Trenchless Technology
(NASTT) currently on my calendar. The
conference will be held in Nashville,
Tennessee, at the historic Opryland Hotel
from 11–16 March. I look forward to
attending this event of my host society
and look forward to seeing many of you
in Nashville.
In closing, I am pleased to announce
that the 2014 International No-Dig will be
hosted by the Iberian Society for Trenchless
Technology (IbSTT) in Madrid, Spain, and
the 2015 International No-Dig will be hosted
by the Turkish Society for Infrastructure and
Trenchless Technology (TSITT) in Istanbul,
Turkey. Both of these Affiliated Societies
had two of the best proposals that we at
ISTT have ever seen, and will be hosting
the event for the first time. Madrid and
Istanbul are two of the most historical
and culturally-enriched cities in the world.
The ISTT is currently soliciting possible
options in the Asian region for the 2016
International No-Dig. Please let us know if
you have any preferences.
FROM the CHAIRMAN’s desk
January 2012 - Trenchless International
1

Great Southern Press
Pty Ltd
query@trenchlessinternational.com
www.trenchlessinternational.com
Editor: Kate Pemberton
Associate Editor: Sarah Paul
Journalist: Tori McLennon
Sales Manager: Tim Thompson
Senior Account Manager: Brett Thompson
Sales Representative: David Entringer
Creative Director: Michelle Cross
Senior Designers: Bianca Botter,
Katrina Rolfe and Susie Monte
Designers: Venysia Kurniawan,
Ben Lazaro
Publisher: Chris Bland
United States
(Sales)
16360 Park Ten Place, Suite 109
Houston, TX 77084
Tel: +1 281 492 7272
Fax: +1 713 521 9255
Australia
(Sales and subscriptions)
GPO Box 4967
Melbourne VIC 3001 Australia
Tel: +61 39248 5100
Fax: +61 3 9602 2708
China (Qingdao)
(Sales)
Tel: +86 1369 7685 078
ISSN: 1836-3474
This magazine is an official publication of the
International Society for Trenchless Technology (ISTT)
and is distributed free to members and other interested
parties worldwide. It is also available on subscription.
The publishers welcome editorial contributions from
interested parties. However, neither the publishers nor
the ISTT accept responsibility for the content of these
contributions and the views contained therein which
will not necessarily be the views of the publishers or
the ISTT. Neither the publishers nor the ISTT accept
responsibility for any claims made by advertisers.
All communications should be directed to the publishers.
Unless explicitly stated otherwise in writing, by providing
editorial material to Great Southern Press (GSP),
including text and images you are providing permission
for that material to be subsequently used by GSP, whole
or in part, edited or unchanged, alone or in combination
with other material in any publication or format in print
or online or howsoever distributed, whether produced
by GSP and its agents and associates or another party to
whom GSP has provided permission.
REGULARS
From the Chairman’s Desk 1
Executive Director’s Report 6
About ISTT/Membership 61
Contacts and Addresses of Affiliated Societies 61
Upcoming Events 63
Advertisers’ Index 64
Subscription and Editorial Schedule 64
News
World wrap 8
Trenchless International update 10
in memoriam
Farewelling an innovator 16
industry NEWS
Infrastructure Marketing Solutions
at Great Southern Press 18
north america
Under Nashville – big role for
trenchless in Nashville’s future 20
Country’s finest – NASTT No-Dig 2012 24
Under the Avenue 28
utility focus: north america
Water utilities in North America 32
relining options
CIPP – where do we go from here? 34
Laying it on thick 37
Innovative sewer rehab 39
Jubilee in Barcelona 41
Montreal saves with lining 42
From felt to glass fibre liners 43
Do you have what it takes to uphold
your required specification? 44
vacuum equipment
An economical disposal 46
2

Issue 14 - January 2012
projects
Tunnelling success Down Under 47
HDD
Two cities, one continuous bore 48
HDD – the South African experience 49
Boring through a steep slope 52
Drilling in the heart of Cajun country 54
ISTT news
Calling for papers in Colombia 56
Moscow calls for papers 56
ITTC brings together industry in China 56
No-Dig Down Under 2011 57
The EXPERTS of Poland 58
Get internationally recognised
with 2012 ISTT No-Dig Awards 59
Renewal for the
future
istt esc profile
5 minutes with Jeff Pace 60
In this issue | Russia | US | South Africa | Germany | Canada | Spain | Poland | Australia| UK
HDD
Ring
ofFire
Relining options
CIPP
The official magazine of the ISTT
January 2012
Issue 14
The cover shows the Microtunnelling break through at
Chaplin Crescent for the 270 m tunnel on the Avenue Rd
Watermains Project. Read more on page 28.
Thoroughly tested solutions
Aarsleff Pipe Technologies does long-term
thinking. We supply environmentally friendly,
long-life solutions for No-Dig renewal of
pipelines. The solutions are robust and require
only a minimum of maintenance. Continuous
testing and development is part of the
everyday life. That makes good economic
sense for society.
4
www.aarsleff.com

executive director’s report
John Hemphill
Istt Executive Director
International Society for
Trenchless Technology
www.istt.com
info@istt.com
Chairman: Dr Samuel Ariaratnam
ariaratnam@asu.edu
Vice-Chairman: Derek Choi
derekchoi@balama.com
Executive Director: John Hemphill
hemphill@istt.com
Membership Secretary: Kyoko Kondo
kondo@istt.com
Executive Sub Committee
Jeff Pace: Australasia
Sergio Palazzo: Brazil
Gerda Hald: Denmark
Enrico Boi: Italy
Takehiro Toyoda: Japan
Norman Howell: United Kingdom
Dr Dec Downey (Past Chair): United Kingdom
Happy New Year everyone! In 2011,
ISTT celebrated its 25 th anniversary, and we
had much to celebrate. ISTT member
societies held many successful education
and training events promoting the public
benefits of trenchless construction techniques.
I was privileged to participate in
some of these events and saw firsthand
the energy and commitment of ISTT members
to trenchless solutions.
We launched a new, state-of-theart
website, which we believe will raise
the profile of Trenchless Technology.
Vice Chairman Derek Choi, Executive
Subcommittee member Enrico Boi,
Membership Secretary Kyoko Kondo and
I spent many hours collectively defining
and refining the website’s appearance
and content. I wish to thanks Derek and
Enrico in particular for volunteering so
much of their time in helping to put the site
together. I also want to thank Emanuela
Carcangiu, the graphic designer and
manger of this project for the web
design firm Pavoneggi, for her patience
and quick turn-around of our many
requests for changes. I believe the newly
launched website will quickly become
the ‘go-to’ website for those interested in
Trenchless Technology.
The ISTT website has many new features
that should be attractive to ISTT
members and the trenchless industry
at large. The new website has a members’
only section that provides special
access to certain content including free
downloads of trenchless reports and
papers. It also features a totally new
section that describes the characteristic
and attributes of more than 30 trenchless
technologies. The aim of this section is
to attract potential trenchless users by
showing the range, scope and benefits
of trenchless applications that may be
used to install and rehabilitate underground
utilities.
Indeed, trenchless education and information
were themes that helped guide
the development of the new website. The
new website has elevated the promotion
of Affiliated Society educational activities
by prominently displaying upcoming
society events on the home page. The
site will eventually have a number of videos
on trenchless that can be viewed by
a click of the mouse as well as a store for
purchasing publications and other items.
I am delighted with the new website
and believe it will be a real plus to the
ISTT membership and trenchless community.
Maintaining a first class website
is work. Content must be kept current,
mistakes eliminated and new featured
regularly added such as trenchless videos.
We ask for your assistance. If you
see information that is incorrect or outof-date,
have content such as videos
that might be added to the website, or
otherwise have suggestions to improve
the website, please email us your comments
at info@istt.com
C
M
Y
CM
MY
CY
CMY
K
HDD Tooling
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January 2012 - Trenchless International
6
Executive Director, ISTT
308 S. Lee Street
Alexandria, VA 22314
United States
Tel: +1 (703) 299-8484
Kyoko Kondo (Ms.)
Membership Secretary ISTT
3rd Nishimura Bldg.,
2-11-18, Tomioka, Koto-ku,
Tokyo 135-0047, Japan
Tel: +81 (3) 5639 9970
FAX: +81 (3) 5639 9975
Registered Address:
15 Belgrave Square
LONDON, SW1X 8PS
UK
The Americas
Prime Horizontal Group
203 W. Main Street, Suite 108
New Iberia, Lousisana 70560
Phone +1-337-359--9061; Fax +1-337-359-9063
Europe, Middle East, Australia, Asia
Prime Horizontal Group
Head Office
Salland 3
1948 RE Beverwijk
The Netherlands

World wrap
Calgary renews CIPP
Insituform Technologies, Inc. announced a $US5.8 million
contract extension from the City of Calgary, Alberta, Canada.
Over the next twelve months, the company expects to
complete approximately 90,000 ft of CIPP rehabilitation on
wastewater pipelines ranging from 8-48 inches in diameter.
Wessex water mains get refreshed
In Dulverton, Wessex Water is half-way
through a £500,000 scheme to using pipebursting
to replace 4.8 km of water mains
that date back to the 1920s.
Jamaica improves water systems
Jamaican Minister of Housing, Environment and
Water, Dr Horace Chang, signed four major contracts
valued at approximately $US2.8 billion, to improve
water systems across Jamaica. This will entail network
expansion, replacement of sections of the water
supply, and rehabilitation of supply facilities.
Scottish pipes set for rehabilitation
Scottish Water will be giving water mains stretching from
Perthshire into Angus a significant makeover using relining and
swabbing. The £1 million project is part of a multi-million pound
program across Scotland to improve over 4,800 km of water
mains, in communities from Ayrshire to Aberdeenshire and the
borders to Argyll and Bute.
Azerbaijan gets a jump start
Construction in Baku on the third metro line in
Azerbaijan, got a jump start with the launch of a
Robbins EPB. The 6.3 m diameter tunnel boring
machine is one of two EPB machines excavating
parallel 3.5 km tunnels approximately 15 m apart,
for contractor Azerkorpu.
NEWS
Water rehab approved
for Tennessee
Officials in Sparta, Tennessee, authorised
the issuance of a $US1,590,000
note for construction of water and
sewer system improvements and
extensions. Projects designated for
this funding include the design of
sewer rehabilitation by pipe bursting,
dig and lay method, or CIPP.
news
January 2012 - Trenchless International
Keep up to date with this news and more by subscribing to the Trenchless International online update.
No-Dig Down Under 2011 an international success
No-Dig Down Under 2011, held in Brisbane, drew a record-breaking
number of attendees. The conference saw over 1,000 visitors attend
from Italy, Switzerland, USA, Netherlands, Thailand, Germany, China,
UK, Singapore, Papua New Guinea, Australia and New Zealand.
www.trenchlessinternational.com
January 2012 - Trenchless International
8
9

Tunnelling in America
VMT GmbH Germany has opened a branch in North America, located in
Sumner, Washington State, US.
As the American tunnelling business is growing, with several large-scale
infrastructure tunnel projects on both the east and west coasts, VMT now
has a permanent attendance of VMT engineers set up in the Sumner office,
located close to SeaTac International airport.
VMT is now able to monitor the complex Alaskan Viaduct project in
Seattle, which demands monitoring and data management systems as well
as technical support from the local personnel.
The tale of a cleaner brook
A Failsworth neighbourhood clean-up campaign is getting a £2 million boost thanks to
a major sewer project by United Utilities, located in Manchester, UK.
United Utilities has been tunnelling under the river at Hale Lane, Failsworth, to lay a new
sewer pipe that will prevent pollution overflowing into the watercourse during heavy rain.
The Moston Brook sewer improvement project is part of United Utilities’ £3.6 billion
investment plan between 2010 and 2015, helping bring better water supplies and a
cleaner environment.
news
January 2012 - Trenchless International
Bicester gets tough pipes
Naperville gets innovative
The City of Naperville Department of Public Utilities – Water has commenced
work on its water main rehabilitation project, located in Chicago, Illinois, US, using
innovative trenchless techniques.
The project will utilise cured-in-place thermosetting resin pipe that is installed
inside the existing water main. The process creates a structurally sound and flexible
pipe, eliminating corrosion and greatly reducing future water main failures.
Thames Water is replacing a section of worn-out, century-old water main
that has burst three times in three years between Bicester and Amrosden,
located in the UK.
More than 2 km of 12 inch cast-iron pipe between Bicester and Ambrosden
will be replaced with tough new plastic pipe.
The major project is part of a £1.5 million scheme to cut leakage in
Oxfordshire and to minimise the risk of interruptions to the water supply.
Can’t wait for the next edition of Trenchless International?
Get the latest news at www.trenchlessinternational.com/news
10

Double pipe-bursting in Minneapolis
Double pipe-bursting has been utilised in Delwood and Bellaire, Minneapolis, US,
to connect the Inwood sanitary sewer at Redwood Boulevard.
Utiliton Corporation crews installed the final sections of sanitary sewer, using double
pipe bursting to connect the 456 ft of seamless HDPE pipe. The project’s final run from
Inwood to Redwood should be completed within a week.
New Online Advertising
packages in
Watermains upgrade for Cookstown area
Northern Ireland Water has invested £7 million toward the water supply infrastructure
in the greater Cookstown area, located in Country Tyrone, Northern Ireland.
The work will involve the replacement of approximately 110 km of water
mains to improve the quality, reliability and flexibility of water supply, while also reducing
leakage.
The work, which will last approximately 12 months, will take place in two phases, with
one phase focusing on the area around Moneymore. The second phase will centre on
the rest of the Cookstown District.
Building a turnkey solution
Jamko Technical Solutions and Dyna Mole have formed a strategic alliance that will merge
Jamko’s advanced cleaning and with pipeline inspection services with Dyna Mole’s trenchless
pipe lining and directional drilling services to provide a turnkey non-destructive pipeline solution.
By offering a single service agreement for pipeline maintenance and remediation, the benefits
of non-destructive inspection coupled with non-destructive repairs can rehabilitate piping systems
without the added costs commonly associated with traditional ‘poke and hope’ methods.
www.trenchlessinternational.com
• Great value packages offering exposure
on websites & e-news
• Huge discounts on offer for multiple bookings
• Fully audited readership and performance
figures for advertisers
January 2012 - Trenchless International news
Online advertising – a great way to support your print
advertising and target new readers.
Contact David Entringer – dentringer@gs-press.com
12

Kicking off Keswick
United Utilities has commenced work on Keswick's long-awaited town centre sewer
improvements, located in the North Lake District, UK.
The new structure will eventually replace the town’s existing pumping station in Greta
Grove. At around twice the size, it will play a vital role protecting the environment and helping
prevent the problem of sewer flooding which occasionally affects some local homes.
The £23 million scheme will improve the capacity of the local sewer network and boost
the standard of treatment at the town’s sewage works, where work has already been
underway for more than a year.
Sydney’s power supply secured
Ausgrid crews have completed the first stage of a multi-million dollar upgrade of the
Sydney, Australia, north sub-transmission network, using horizontal directional drilling
(HDD) to install cables under rail embankments.
The company used a horizontal directional drill with a 450 mm drill to create four
separate cores in parallel, carrying a bank of six conduits each. The bore ran from
Wolsely Road to Lindfield Avenue in Linfield. The Crew worked for approximately one
month, drilling at a depth of about 14 m below the railway line.
The upgraded substations and new sub-transmission cables will help improve the
reliability of power supply to more than 45,000 homes and businesses in North Sydney.
Can’t wait for the next edition of Trenchless International?
Get the latest news at www.trenchlessinternational.com/news
Innovators in Trenchless since 1962
Grundodrill 15 XP
The powerful yet easy to operate HDD system from TT
January 2012 - Trenchless International news
• Self regulating power control
• Automatic drilling fluid
pressure adjustment
• Perussive hammer for
stony soils
• Rapid diagnostic testing
• Maximum working and
operator safety
• Pipes up to Ø 335 mm
• Bore lengths up to 355 m
TRACTO-TECHNIK GmbH & Co. KG · P.O.Box 4020 · D 57356 Lennestadt
Phone: +49 2723 808238 · Email: export@tracto-technik.de · www.tracto-technik.com
14

Farewelling an innovator
Trenchless industry pioneer and co-founder of Insituform Technologies, Doug Chick, passed away
at age 87, after decades contributing to the industry, and will be greatly missed.
Mr Chick served in the US Navy
during World War II. After his honourable
discharge from the military he began
working in Liberia, where he started a
shipping company that grew to an impressive
five tankers, as well as several fishing
boats. He relocated to Nigeria to help
expand his company before settling in the
UK in 1961.
Mr Chick’s contributions to Insituform
in the early 1970s included invaluable
technical support as well as the financial
backing of the company. Mr Chick
actively worked on Insituform’s landmark
Clearwater job in Florida, which required
the use of a new epoxy resin and the
installation of cured-in-place pipe (CIPP)
underneath the Clearwater Bay.
Tom Driver, longtime employee of
Insituform and personal friend of Mr Chick,
said “Doug’s involvement on this project
was critical to its success. This project
presented several challenges, including
the location of the project and the necessity
to wet out the tube onsite using a
new resin. Once the tube was wet out, we
knew the clock was ticking and the tube
would need to be installed as quickly as
possible without compromising the success
of the project.
“Although Doug was one of the founders
of the company, and had used his
personal financial resources to get the
company started, he worked alongside
the crew for 24 hours a day until the
project was completed.”
Mr Chick held senior leadership positions
and served on the Board of Directors
at Insituform from 1990 until 1997. He
was 87 years old when he passed away
on 5 May, 2011. He is survived by his
wife, Avril and son, Mark.
TRENCHLESS
South East ASIA
2013
Bangkok, Thailand
March 2013
www.nodigevents.com
January 2012 - Trenchless International
In Memoriam
16

industry news
January 2012 - Trenchless International
Infrastructure
Marketing Solutions
at Great Southern Press
Great Southern Press is pleased to announce the creation of a new department to help the
trenchless industry businesses market themselves.
Great Southern Press’ (GSP) new
Infrastructure Marketing Solutions division,
managed by Jacinta Hannaford, provides
customised marketing services to businesses
in the trenchless industry, to deliver
integrated marketing communications that
drive revenue and growth.
“I look forward to bringing together my
marketing knowledge with GSP’s strong
understanding of the industry so that we
can create campaigns that solve trenchless
businesses’ unique problems in a new and
exciting way,” said Ms Hannaford.
“As marketing now seeks to be more
seamless for the customer and moves
toward tailored techniques such as content
marketing, the boundaries of publishers and
marketers are becoming less defined.”
Content marketing is a marketing technique
in which unique and compelling
content is developed and delivered to customers
in order to cut through the daily
marketing clutter and deliver strong, targeted
marketing results.
“With our unique expertise in marketing
and industry affairs, GSP is in a great
position to provide integrated marketing
communication campaigns across
a variety of platforms such as micro-sites,
custom magazines and webinars,” said
Ms Hannaford.
The US is seeing a growth in publishers
that offer marketing services to clients. The
American Business Media said that 20 per
cent of its members are now engaged with
developing marketing solutions for their
clients. This is because publishers can offer
specialist knowledge and insight that is
often lacking in marketing and advertising
agencies that spread themselves across
many disciplines.
Managing Director of Great Southern
Press Chris Bland said “Extensive knowledge
of the trenchless industry’s sales
cycle, buyers’ behaviours, products and
services, goes a long way toward creating
marketing that delivers results. We
Infrastructure Marketing
Services include:
• Audience and
market research;
• Strategic planning;
• Marketing materials
and copy writing;
• Graphic design;
• Lead generation;
• Website and social
media audits;
• Custom publishing; and,
• Project management.
have been working closely with the trenchless
industry for many years and it’s a
natural progression for us to assist our
clients with our marketing skills and
industry expertise.”
For more information on
Infrastructure Marketing Solutions visit
trenchlessinternational.com/services or call
+61 3 9248 5100.
Traditional marketing
This is the form of marketing that many audiences are familiar with and is sometimes
called offline marketing. It includes advertising, direct mail, telemarketing and directories.
Content marketing
Content marketing is the creation of unique content that is relevant to the targeted audience and designed to
elicit a reaction from current and prospective buyers, such as lead generation, brand awareness or customer
education. Examples of content marketing are branded micro-sites, custom publications and white papers.
Our secret
to marketing
that works?
We know
trenchless.
Infrastructure Marketing
Solutions creates customised
promotion for businesses in
infrastructure.
It is a new division of Great
Southern Press, the publisher of
Trenchless International magazine.
This gives our team unique
expertise in the infrastructure
industry to create integrated
marketing communication
campaigns that influence and
persuade your audiences.
Contact
+61 3 9248 5100 | tthompson@gs-press.com.au
trenchlessinternational.com/services
18

north america
January 2012 - Trenchless International
Under Nashville – big role for
trenchless in Nashville’s future
By George E. Kurz, P.E., DEE Barge, Waggoner Sumner & Cannon, Nashville, TN
People in the trenchless industry in the middle Tennessee area are excited about hosting the 2012
No-Dig Show in Nashville in March. Here we take a look at the infrastructure Under Nashville to see
how trenchless has helped deliver to the community, and serves as a significant part of the future.
The City of Nashville and Metro Water
Services (MWS) are on the verge of a
sewer system improvement program estimated
to cost between $US1 billion and
$US1.5 billion. MWS is a department of the
city which operates the sewage collection
and treatment system for most of Nashville,
surrounding Davidson County and fringe
areas of other counties near Nashville. MWS
also treats and provides potable water for
much of this area, and additionally operates
the stormwater utility for the county.
Trenchless wastewater rehabilitation has
played a major role in improving the sewage
collection system over the past 20 years.
This was highlighted during a previous
No-Dig conference and numerous pumper
equipment shows held in Nashville.
In 1993, the previous 15-year Nashville
program was the recipient of the first
Trenchless Technology Project of the Year
– Rehabilitation. The winning Oak Valley
Drive Project demonstrated that significant
additional infiltration and inflow (I/I) reduction
could be achieved by rehabilitating
service laterals simultaneously with public
sewer rehabilitation. Rehabilitation of service
laterals and manholes in a comprehensive
‘system approach’ became a hallmark of
this program.
In 2006, the Whites Creek Performance-
Based I/I Reduction Contract, MWS
– along with design-build partners Reynolds
Inc. and Arcadis – was named the
Trenchless Technology Project of the Year
– Rehabilitation.
Recently published plans by the city show
that trenchless techniques will play a significant
part in the future.
Meeting the standards
Nashville began an aggressive program
in 1990 to reduce the number and severity
of separate sanitary overflows (SSOs)
and combined sewer overflows (CSOs)
following an earlier Order from the State
of Tennessee. 15 years of work by the city
resulted in major reductions of overflows
and major improvements in the level of service
for MWS customers.
One measure of improvement was recognised
by state and federal regulators
when 33 miles (approximately 53 km) of
the Cumberland River were formally ‘delisted’
during a ceremony in November
2002. Major reaches of the river were
removed from the Environmental Protection
Agency (EPA) 303d list, which is used to
identify watercourses with significant environmental
impairment. The de-listing meant
that those reaches now meet EPA water
quality standards.
Curing a trenchless lateral liner from
the clean-out in Nashville,1994.
Despite these improvements, further
work was required, and an enforcement
action initiated by the US EPA resulted in
a Consent Order with Nashville that was
approved by all parties in March 2009.
Initially, the city was required to develop
and submit a Corrective Action Plan &
Engineering Report (CAP/ER) and a Long-
Term Control Plan (LTCP). Considering an
extension of the original schedule allowing
for the devastating flood in Nashville in May
2010, the city submitted these documents
to the US EPA in September 2011. The
CAP/ER (developed by the MWS engineering
consultant, CDM) estimated a total of
about 300 miles (approximately 483 km) of
sewer rehabilitation work projected for the
three main parts of the sewage collection
system (served respectively by the three
treatment plants operated by MWS shown
in Table 1).
Table 1: rehabilitation work projected by
treatment plant basin.
Wastewater treatment
plant and basin
Rehabilitation
upper limit* (feet)
Central 1,251,000
Whites Creek 194,000
Dry Creek 153,000
Total 1,598,000
*Footage shown is the upper limit of pipe footage
identified in the rehabilitation target areas. Actual rehabilitation
footages will be based on achieving R-value
reduction goals targeted determined through on-going
flow monitoring.
Trenchless, Nashville
and Mr Toosie
To get a more personal and close-up
perspective, Assistant Director and Chief
Engineer for MWS Cyrus Toosie allowed
Trenchless International to interview him
about his experiences with trenchless techniques
in Nashville. When asked about past
experiences with trenchless products in
Nashville, Mr Toosie said that most of the
sewer rehabilitation in Nashville has been
conducted using trenchless methods for
reducing I/I.
Nearly 240 miles (approximately 386 km)
of sewers have been lined in the previous
program – which represents almost
10 per cent of the system. Predominantly,
Nashville used cured-in-place pipe (CIPP)
type products, as well as fold-and-form liners.
“Generally CIPP products met our
objectives better than other processes,”
Mr Toosie said in regards to the early years.
The rehabilitation work (and upgrades to
pumping stations, construction of detention
tanks and upsizing some pipes) resulted
CIPP lining in Nashville 2002.
in a reduction of SSO locations from 164
to 27, and a reduction of CSO locations
from 32 to 9. The level of effectiveness
of the rehabilitation work was measured
objectively using over 100 long-term and
hundreds of short-term flow monitors.
Mr Toosie said “We used the post-monitoring
to measure the reduction of I/I and
R-values (percentage of rainfall reaching the
sewer pipes) to determine if an SSO could
be terminated.
“Compared to dig-up and replace,
trenchless rehabilitation is a whole lot less
disruptive to the community.”
In regards to making decisions about
products used in previous work Mr Toosie
said “The advantages of CIPP for us were
that there was no annular space, there
was a strong bond in the host pipe, the
material did not have a ‘memory’ like foldand-form
(at that time), and there was no
opportunity for shearing at a butt joint (referring
to HDPE pipe).”
Cyrus Toosie,
P.E. Metro
Water Services,
Chief Engineer.
Mr Toosie reflected that the previous
program developed a definite preference
for using CIPP. However, he pointed out
that “We have been out of the business for
about five years,” (referring to a lull in rehabilitation
work by MWS from the end of the
initial program and during the negotiation
period for the current Consent Order).
“Now, we will go back to the drawing
board and develop criteria and standards
for the rehab work planned in the CAP/ER.”
Mr Toosie also said that this fresh look
at the program would review new products
developed or made available in recent
years. As an example, he referred to the
extensive, successful use of UV-cured CIPP
in the City of Brentwood that has a satellite
wastewater collection system connected to
the Nashville system. UV-cured CIPP was
not readily available during most of the prior
Nashville programs.
Recently, MWS also used a PVC spiral
panel type of liner for the first time to
line 800 ft of a deteriorating 96 inch brick
CSO outfall built in 1910. This installation
downstream of the Schrader Lane
CSO Regulator chamber was recently completed
and a paper on this project will be
presented during the 2012 NASTT No-Dig
in March.
Installation of Danby spiral panel
lining in 96 inch brick combined
sewer outfall.
The overall strategy
Mr Toosie continued by explaining the
overall strategy that formed the foundation
of the CAP/ER. He said “I always think that
it is important to have a strategic plan. It
took three years to develop it (for the CAP/
ER that was just submitted to EPA). Now
we have a cook book, a road map.”
He explained the concepts behind
developing the strategy “There are three
solutions for reducing I/I and stopping
overflows: sewer rehabilitation, additional
conveyance capacity, and storage. It is like
a triangle with these three points. Our job
is to find the ‘sweet spot’. We need to get
the R-value from a level of 20 per cent (for
example) down to a level of 10 per cent. So,
what does that require using these three
techniques?”
Mr Toosie described the task of achieving
a balance among the techniques for getting
the best benefit for the cost.
“Overall, I think that sewer rehabilitation is
effective. However, when we looked at the
costs for the Central basin area, we found
we could spend $US10 million on additional
storage, and thereby eliminate a cost of
$US100 million for rehabilitation. We tested
the result with the computerised hydraulic
model, and saw that the storage alternative
would effectively handle the problem in that
area,” Mr Toosie said.
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Planning for the storm
The hydraulic model has been a critical
tool used by CDM to evaluate the alternatives.
The model allowed sophisticated
testing of various storm sizes. The latest
study is based on using the two-year,
24-hour dormant season storm design.
This storm includes a peak intensity of 0.97
inches per hour and a 24-hour volume of
3.15 inches. Mr Toosie pointed out that
the computer model was essential for identifying
the effects of extreme conditions,
such as two of the design storms occurring
back-to-back. The final capacity and
pumping requirements must be checked
when conditions will not allow the facility to
be completely drained from the first storm.
When this kind of analysis was conducted
through all three of the collection
system basins, the planners selected sewer
rehabilitation as a major component of
the overall program. Mr Toosie said that
rehabilitation would cost about $US300
million and represent about 38 per cent of
the money planned for the separate sewer
system (or about 27 per cent of the overall
program). He pointed out that these were
still very broad estimates, and the MWS
website cites the range as $US1 billion to
$US1.5 billion. Not being able to meet the
schedule, even with a sufficient workforce,
is Mr Toosie’s biggest worry.
Regarding projections of future problems,
Mr Toosie said “It is too early to tell. We are
just beginning and we have eleven years.”
When asked about funding for such a massive
program, Mr Toosie explained that in
the near term, there is a lot of borrowing
debt capacity, and that funding is now in
place for the first three years. For the future,
he said that his ‘gut feeling’ was that the
system would borrow as much money as
possible until a rate increase was needed.
Mr Toosie likes the idea of using sewer
rehabilitation for asset management and
sewer renewal, which is also a part of
the Capacity Management, Operations &
Maintenance (CMOM) requirement in the
Consent Order.
A fresh look for the future
In planning for the next sewer rehabilitation
projects, MWS will take a fresh look at
available processes and techniques.
“Once all the rehab consultants are on
board plus the construction manager and
the program manager, then a focus group
will be created from these players to evaluate
and recommend the most cost-effective
products and processes to serve MWS’
purposes,” Mr Toosie said.
This group will help establish the strategy
for application of products and the criteria
for selection.
L to R John Evans (Garney Construction -
prime) Greg Ballard, P.E. (MWS), Phil Regen,
P.E. (MWS), Jim Bailey, P.E. (MWS), Tony
Dykes, Superintendent Veolia Construction
(Danby Liner installation).
“Compared to dig-up
and replace, trenchless
rehabilitation is a whole
lot less disruptive to the
community.”
JOBS
www.trenchlessinternational.com/jobs
NOW ACTIVE – List a job. Find a job.
Trenchless International Jobs allows
job-seekers to search for and apply
online for jobs that are specific to
every part of the trenchless industry
around the world.
Trenchless International’s targeted
readership of trenchless professionals
around the world will ensure
employers get the very best applicants
every time.
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January 2012 - Trenchless International
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22

Country’s finest –
NASTT No-Dig 2012
This year the 2012 NASTT No-Dig will held in the home of country music – Nashville, Tennessee – from
11–15 March at the Gaylord Opryland Hotel and Convention Centre, make sure not to miss out on the
exciting program and events.
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January 2012 - Trenchless International
The 21st annual NASTT No-Dig conference
will return to Nashville as its host for
the third time in the events history.
Program Chair George Ragula said
“When we first met here a decade ago,
some would say that it was a turning point,
a sort of renaissance for the organisation
and the industry itself. The 2001 event
sparked a renowned interest in Trenchless
Technology as a viable method to repair/
replace underground systems while minimising
surface disruption.”
Since 2001, No-Dig has nearly doubled
in size, keeping pace with the rapid growth
of the industry. Cutting-edge technologies
are continually being developed and introduced
to the marketplace. Each year brings
new products, new services and new players.
Projects are continuously pushing the
boundaries of what can be achieved with
trenchless technologies.
The NASTT No-Dig conference creates a
unique opportunity to see, hear and interact
with leaders in the industry who drive the
trenchless marketplace today.
A full program
This year the conference program is
packed with six tracks and 155 technical
papers on timely topics, and attendees will
hear from some of the leaders in the industry
on past and present projects.
The six tracks will focus on the following
aspects of Trenchless Technology:
• Horizontal directional drilling (HDD) and
rehabilitation/cured-in-place pipe (CIPP)
• Auger boring, pilot tube microtunnelling,
microtunnelling, large diameter tunnelling
and tunnelling
• CIPP lining, lining materials, methods
and installation and water rehabilitation
• Current trenchless research, lining
materials, methods and installation,
pipe bursting, pipe ramming and trenchless
risk issues
• Asset management, condition assessment
and pipeline inspection, and inflow
and infiltration
NASTT Program Chair George Ragula at the 2011 No-Dig.
• Condition assessment, current trenchless
research and environmental issues
and CIPP lining.
The No-Dig show is also pleased to offer
both pre-and post-conference courses on a
number of trenchless techniques including
HDD, pipe bursting, laterals, new installation
methods and CIPP lining. In addition,
there will be a one-day Introduction to
Technology course held on the Sunday preceding
the conference, which will cover the
latest advances in trenchless techniques.
Focused on helping maximise attendees
investment in trenchless technologies,
24

services and applications, the program has
something for everyone. Delegates range
from owners, utilities and municipalities
to contractors and leading industry providers.
The conference allows a learning
experience for replace/repair, and installing
pipelines with minimal excavation while
reducing the impact to your surroundings.
Outside of the program
Events and networking start off with
Monday’s opening kick-off breakfast,
where the winner of the 2012 Trenchless
Technology Person of the Year award,
and the 2011 Outstanding Papers in
Rehabilitation and New Installation awards
are announced. The breakfast also allows
delegates the opportunity to meet with
old friends and colleagues and network.
Monday evening marks the Annual
Education Fund Auction, where delegates
can donate and bid on items to help raise
funds for the NASTT’s educational initiatives.
This year is a country western theme,
so make sure to bring your cowboy boots
and hat for a great time.
Tuesday evening will be the Gala
Awards Dinner Reception, where the best
in the industry are recognised for their
outstanding achievements. The
Trent Ralston Award for Young
Trenchless Achievement will be
announced at the dinner. The award
was created to honour the late Trent
Ralston, whose contributions to the
NASTT helped shape the trenchless
industry. The annual award was established
to recognise a young individual
who has demonstrated excellence in
the early stages of their career, and
has made a valuable contribution to
the industry.
In addition, the winners, runners-ups
and honourable mentions of the 2011
Trenchless Technology Projects of the
Year in Rehabilitation and New Installation,
as well as the NASTT Chairman’s Award
for Outstanding Lifetime Achievement will
be announced.
I heart Trenchless
Don’t forget to stop by the Trenchless
International booth to pick up your latest
copy of the magazine and an ‘I Trenchless’
sticker to show your support. Make sure
to say hello to the Trenchless International
team and smile for your photo.
We look forward to seeing you all there.
SEE YOU AT
Royal Melbourne Showgrounds
23-24 October 2012
BIGGER
--------
EXHIBITION SPACE
MORE
-------
LIVE DEMONSTRATIONS
2012
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January 2012 - Trenchless International
26
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NO-DIG DOUG IS BACK!

Under the Avenue
The Ward and Burke team at the Oriole Parkway site.
The City of Toronto, located in Ontario, Canada, is constructing a new watermain to replace the
original pipes that were constructed in 1915 and 1923, using microtunnelling for part of the project.
minimises ground-level disturbance and can
be used in all ground types from soft clay
to competent rock. Reinforced concrete
1,200 mm ID jacking pipes were selected
as the preferred liner for the microtunnel
drives. The pipes provided the compression,
watertightness, and durability properties
needed for granular based water bearing
grounds on this project.
Careful positioning
The project overcame many logistical
and technical problems. The small site footprints
and congested access routes made
the setup and operation of the equipment
more difficult.
For the microtunnelling implemented on this
project, the first drive took place on Avenue
Road, tunnelling 70 m south towards Chaplin
Cresent, and the second on Oriole Parkway,
tunnelling 270 m west under Chaplin Cresent
to Avenue Road. Both launch sites were less
than 50 m long x 20 m wide.
Director of Ward and Burke Microtunnelling
John Grennan said “We had to think very
carefully where the plant was positioned in
order to maximise the working space on site
and the efficiency of the equipment. Existing
utilities below and above the proposed
alignment meant that tunnelling took place
in saturated silts and sands that were previously
disturbed.
“In addition, the second microtunnel was
270 m long in ground that had high interface
“Trenchless Technology has proven to have unique
advantages in areas throughout this project which
allowed the contractors to place the watermain
beneath the mass web of utilities and underground
infrastructure while minimising the traffic and public
impacts at the surface.”
skin friction properties that produce high
jacking forces. The glacial till geology of
the Greater Toronto area also ensures the
possibility of encountering boulders along
tunnelling alignments.”
Despite these challenges, the steering
control design of the Herrenknecht TBM
ensured that the proposed alignment was
maintained throughout both tunnels. The
jacking force levels were reduced with an
automated bentonite lubrication system that
controlled the flow, pressure, and distribution
of lubricant along the tunnel line.
The jacking forces were less than 50 t
throughout the drives, which prevented the
need for interjack installations.
“To overcome this risk of boulders, we
fitted the TBM with a mixed ground cutting
wheel capable of breaking down boulders
with the rock-cutting discs on its head. The
– Lead Design Engineer Mark Belanger
decision to go with the mixed head was
justified as we had no stoppages due to
obstructions and we achieved production
rates of 20 m per shift,” Mr Grennan said.
The 70 m drive was complete in four
no. 12-hour shifts and the 270 m drive
was completed in fourteen 12-hour shifts.
The high water table in both drives had no
effects on tunnelling stability, alignment, and
progress during the project.
Navigating the webs
Due to the location of the watermain
project there were a number of engineering
issues to overcome. Finding space for
the 900 mm and 750 mm watermain in
an already congested web of utilities was
not an easy task.
Mr Belanger said “When choosing the
location for the new watermain it was
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January 2012 - Trenchless International
The construction of the new watermains
runs in a north – south direction on
Avenue Road, between MacPherson Avenue
(south end) and Caribou Road (north end).
Avenue Road is a major artery in central
Toronto that connects the downtown core
to the north end of the city.
The existing watermain was constructed
in 1915 and 1923 and carries up to
50 ML/day. It distributes water to reservoirs
across the city and is being replaced
to increase the security of supply and to
improve overall system performance.
The name of the project is: 900 mm &
750 mm Watermain on Avenue Road From
High Level Pumping Station to Caribou
Road. Toronto Water is the owner and
operator of the watermain, Associated
Engineering is the engineering consultant
and Drainstar Contracting Ltd. is the
General Contractor on this project. The
new watermain is to be commissioned in
the Spring of 2012, followed by decommissioning
of the existing 900 mm and
750 mm watermain pipe and associated
valves and structures located along Avenue
Road and Duplex Avenue. Capital cost
is approximately $CDN55 million (approximately
$US52.5 million).
Reducing traffic congestion
The Avenue Road Watermain Project
is approximately 5.5 km long and is
evenly divided between open cut and tunnelled
sections. Trenchless Technology is
employed on this project for a number of
reasons. Firstly, Avenue Road is one of the
main corridors for traffic travelling from the
north of the city (Highway 401) to the downtown
area and implementing Trenchless
Technology would allow the work to take
place beneath the surface, thus minimising
the impact on commuters and users of the
roadway. Secondly, there is a dense web of
utilities buried below the asphalt including
gas, telephone, hydroelectricity, telecommunications,
sewer lines, to mention a few,
which often make open excavation complicated
with utility relocations that require
large working areas that are not available.
Lead Design Engineer Mark Belanger said,
“Trenchless Technology is a much better
option in areas of high population density
and utility congestion because it allows the
contractors to place the watermain beneath
the mass web without disturbing or potentially
breaking any existing utilities.”
Thirdly, the ground conditions also impact
the method of excavation at a number of
locations. Depth of excavation, soil conditions
and groundwater location are all
factors that are considered as part of the
chosen method and location of excavation.
“For this project, two kinds of Trenchless
Technology were adopted open shield pipe
jacking that is hand mined, and microtunnelling.
In total there were 26 tunnels varying
from 20 m in length to 298 m in length
– 24 of these tunnels were carried out
by hand mining with the remaining two
tunnels carried out by microtunnelling,”
Mr Belanger said.
Microtunnelling was carried out using a
Herrenknecht AVN 1200 TBM owned and
operated by Ward and Burke Microtunnelling
Ltd. The tunnel boring machine (TBM) uses
slurry shield technology to provide ground
stability at the cutting face. The system
Microtunnelling Caisson Construction Design & Build
Contact John Grennan on +1 647 971 6795 for further information. | P: +1 905 785 2569
F: +1 905 785 1868 | E: john.grennan@wardandburke.ie | A:2410 Meadowpine Boulevard, Suite No. 101,
Mississauga, Ontario, L5N 6S2, Canada | www.wardandburke.ie
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January 2012 - Trenchless International
The microtunnelling breaking through at Chaplin.
The Drainstar team removing the microtunnelling machine using the CAT 385 excavator.
The launching shaft at Oriole Parkway for the 270 m tunnel.
important to position it to minimise impact on
the local residents and commuters, maintaining
one lane of traffic in each direction at all
times all while trying to thread the watermain
between existing structures and utilities.
“The key to solving this problem was to
undertake an in-depth survey of all existing
utilities, properties, structures, etc. and negotiate
the new watermain around them.”
One challenge during the construction
was maintaining traffic at all times. Drainstar
had to excavate and install deep shafts
12 m in depth with large excavators (CAT
385) all within two traffic lanes. They had
to transport and lower 10 m long sections
of steel watermain pipe with large loaders
while negotiating around Toronto traffic, and
undertake all this work without disturbing
the nearby residents.
“A project of this size and nature on
one of Toronto’s main arterial roadways
that services commuters to and
from the downtown area will have challenges
amongst all users of the roadway,
including the contractor undertaking the
work. Complaints, traffic backups and
noise, – to mention a few – are inevitable,
and it was Drainstars job to mitigate
those disturbances as much as possible,”
Mr Belanger said.
Some of the ground conditions on this
project proved very difficult for open cutting
and tunnelling. In areas, perched water
was presented where relatively permeable
soils are underlain by more impermeable
silty clays and clayey silts. Varying conditions
of soils were groundwater presented
challenges in determining the type of excavation
and groundwater management
controls to implement.
For example, Chaplin Crescent required
a 270 m tunnel to be excavated in soils that
are fast ravelling to flowing ground that is
approximately 5 m below the groundwater
table. Drainstar engaged their sub-contractor,
Atlas Dewatering, to dewater the area
around the tunnel launch and retrieval shafts
for this area, and sub-contracted Ward and
Burke to microtunnel this section. Ward and
Burke completed this tunnel in five weeks
and kept their line and grade despite the
challenging ground conditions.
The environmental and cultural heritage
challenges on this project were minimal.
The entire project is taking place within
the city’s right-of-way and not on private
property. No listed buildings, monuments,
creeks, rivers or structures were in close
proximity to the construction.
Minimal excavation
Trenchless Technology minimises the
amount of material excavated, which in turn
reduces the amount of equipment required
and excavated material that needs to be
trucked off site. Therefore, by reducing the
amount of excavated material the impact
of truck related air pollution on the environment
is reduced.
With Trenchless Technology there are
fewer inconveniences to the general public
in relation to the area required to carry out
the work in comparison to open cutting.
This also minimises traffic disruption, which
is a major advantage on such jobs such as
the Avenue Road Watermain project.
“There is also less dust and noise with
the trenchless methods due to the reduced
construction equipment required to carry
out the work,” Mr Belanger said.
UCT Education
Case studies
Industry issues
Tangible information
Immediately applicable
Maximizing profitability
Real world education for the
underground construction industry.
More than 100 sessions to choose from
Plus, 14 special program/workshops
before, during and after
CEUs and PDHs available.
UCT Educational Tracks
(Jan. 24-26, 2012):
I Tutorial: Introduction To Trenchless
Rehab Technologies
II Sewer Construction, Rehabilitation
III Cured-In-Place Pipe Advances/Developments
IV Pipe Bursting: View From The Field
V Coatings & Linings For Wastewater Structures
VI WaterWorks Conference
VII Trenchless Technical Symposium
VIII HDD: Operations & Pro tability
IX Damage Prevention & Safety Conference
X Underground Utilities Construction
For program details
and to register visit
uctonline.com
30

Water utilities in North America
In a continuation of an in-depth look at water utilities around the globe, here Trenchless International
looks at parts of both Canada and the US. Where Canadian utilities are under the responsibility of the
provincial governments, the US has a mixed structure of both private and public.
utility focus: North america
January 2012 - Trenchless International
United States
Water supply and wastewater
systems are regulated by
state and federal governments, and most
Americans are served by publicly, owned
water and wastewater utilities. Only 11 per
cent of the population receive water from
private utilities. In rural areas, co-operatives
often provide drinking water, while up to
15 per cent of Americans are served by
their own wells.
At the state level, health and environmental
regulation is overseen by the
corresponding state-level departments.
Public utilities commissions or public service
commissions regulate tariffs charged by
private utilities and in some states regulate
tariffs by public utilities.
At the federal level, drinking water quality
and wastewater discharges are regulated by
the United States Environmental Protection
Agency, which also provides funding to utilities
through State Revolving Funds.
Utilities in charge of public water supply
and sanitation systems can be owned
and operated by a public entity or a private
company. In 2007, there were about
52,000 community water systems in the
US which served a total of approximately
242 million people.
The Southeast
In the US, American Water is the largest
water utility company with a service base
of approximately 15 million people across
30 states. In the Southeast, American
Water has locally-managed utility subsidiaries
within the states of Florida, Georgia,
Arkansas, North Carolina, Alabama,
Louisianna, Tennesse, West Virginia,
Virginia, and Kentucky.
Another of the largest players in the
Southeast is Aqua America utility services,
which services 2.8 million customers across
the US, including Virginia, Florida, North
Carolina and South Carolina.
Florida
The Florida Public Service Commission
regulates water and wastewater utility companies
in 36 of Florida’s 67 counties. In
non-jurisdictional counties, the Board of
County Commissioners usually has the
responsibility of regulating the water utilities.
The primary state agency charged with
managing Florida’s water resources is
the Florida Department of Environmental
Protection. The 1972 Florida Resources Act
established five district areas, which have a
governing board that improves and maintains
the region’s water supplies.
North Carolina
The North Carolina Utilities Commission
regulates all utility companies, except
for municipal or county systems, sanitary
districts, homes where water/
wastewater is included in rent (e.g.,
mobile home parks), homeowners’
associations and non-profit and consumerowned
corporations.
Alabama
The Alabama Public Service Commission
Water Section (APSCWS) regulates
eight investor-owned utilities, including
four located out of state systems,
that have authority to operate in
Alabama. APSCWS’ duties include
inspecting the facilities, working with the
Alabama Department of Environmental
Management, and conducting compliance
and accounting audits.
Tennessee
The Tennessee Regulatory Authority
Utilities Division regulates eleven wastewater
utilities, and seven water utilities.
The division assists the authority in establishing
and implementing policy regarding
Tennessee's water, sewer, and wastewater
companies to result in fair and responsible
regulation for all utility companies and consumers
in the state.
The division provides research for companies
wanting to provide utility services in
Tennessee and companies already serving
the state are routinely investigated as to
the rates, terms, and conditions of services
provided to consumers.
Georgia
The premier water and wastewater
management company for Georgia is
Water Utility Management, which operates
112 community water systems and
three community wastewater systems over
eleven counties.
Arkansas
The Arkansas Public Service Commission
regulates three water utilities: Riviera Utilities
of Arkansas, Shumaker Public Service
Corporation and United Water Arkansas.
Currently it does not regulate any wastewater
utilities.
West Virginia
The Public Service Commission of West
Virginia provides advice and assistance
to water and wastewater public districts,
municipalities and associations. They also
respond to water and wastewater utility
inquiries for technical, operational, financial
and regulatory assistance.
In a November 2011 utility cost ranking,
there were 399 utilities listed as operating in
West Virginia.
NEW
Canada
In Canada, water supply and
sanitation is a municipal responsibility
under the regulation of the
provincial governments.
Water and wastewater service provision
in Canada is the responsibility of about
4,000 municipalities. In total, there are
approximately 9,000 public water and
sanitation systems in the country, which
includes 2,500 municipally-owned water
and sewer utilities and approximately
6,500 small, privately-owned and operated
systems providing public services in or at
trailer parks and recreational facilities.
While most municipalities provide water
and wastewater services directly, a few
municipalities have delegated service provision
to private companies or to public
companies owned by Provinces.
For example, the Ontario Clean Water
Agency, an agency of the Province of
Ontario, provides operation, maintenance
and management services for more than
450 water and wastewater treatment facilities
in the province on behalf of about 200
Ontario municipalities.
Metro Vancouver provides treated bulk
water to its constituent municipalities in
Greater Vancouver, and collects and treats
their wastewater.
The governing of drinking water and
sanitation in Canada falls under provincial
and territorial jurisdiction. The provinces and
territories are responsible for developing
and enforcing all legislation pertaining to
municipal and public water supplies, including
their construction and operation.
Each province also has a public utility
commission or board for the economic
regulation of utilities. In many, but not
all provinces, these bodies also regulate
tariffs and service quality of water and
wastewater utilities.
The federal government also has important
responsibilities related to the setting
of standards, research, economic regulation
and water resources management.
The Canadian Council of Ministers of the
Environment plays an important role in
the development of national strategies,
norms and guidelines for water supply
and sanitation.
The Canadian Water and Wastewater
Association, established in 1986, is a
non-profit national body representing the
common interests of Canada’s public
sector municipal water and wastewater
services and their private sector suppliers
and partners.
NEW 150/250N
KRE patented 4WD Lateral Cutting Robot
Stronger, Faster, Better
• Powerful cutting motor
• 360° continuous rotating head
PIPE REPAIR MATERIALS • EQUIPMENT • SUPPLIES
KRE Engineering www.kre.com.au
32 / 205 Port Hacking Road,
Miranda NSW 2232 Australia
Ph: +61 (0)2 9522 4922
email: mickkre@tpg.com.au
utility focus: North america
January 2012 - Trenchless International
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33

CIPP – where do
we go from here?
Dr Dec Downey, Trenchless Opportunities Ltd
cured-in-place pipe
Cured-in-place pipe appears with hindsight as one of the most significant breakthroughs of the last
century. Some 50,000 km of cured-in-place pipe has been installed worldwide since 1971. For 20 years
the technology was protected by substantial patents and licensing policies. The tight grip relaxed in the
1990s and vigorous competition ensued as new processes and materials were introduced.
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January 2012 - Trenchless International
These developments have strengthened the curedin-place
pipe (CIPP) brand, but inevitably the technology has
suffered from commoditisation of the process. Products are no
longer differentiated on brand, design or quality, and are bought
solely on price. In this process, a common phenomenon as markets
mature, prices come under pressure, profit margins shrink
and R&D and customer service are sacrificed.
Licensing was central to the CIPP business. Use of patents
and know-how were regulated by exclusive agreements in
defined geographical territory. Licensees received initial training
and technical support from licensors who managed the supply
of materials and equipment. Close support included assistance
from skilled installers. Exchange of experience and continuous
improvement was beneficial, serving pipeline owners well, maintaining
knowledge and standards.
However, over time, commoditisation fragments know-how
and technology enhancement. As licensed networks break up,
technical controls must be put in place by pipeline owners and
industry regulatory bodies to maintain standards. The process
of regulation typically evolves from proprietary manuals
through industry codes to international standards. In the case
of CIPP, the WRc 4-34-04 specification strongly influenced the
development of BS EN 13566, now replaced by ISO 11296.
The first CIPP installation involved pulling into place a polyester
impregnated felt liner, inflating and leaving to cure at
ambient temperature. With improved materials this evolved into
the familiar water inversion and heat cure process. Air inversion
and steam curing took CIPP into water and gas mains. In 1985,
UV methods were launched. Commercial pressures saw the use
of fillers or resin extenders to improve flexural elastic modulus
and heat transfer, as well as reduce cost. Awareness of infiltration
through the joints in house connections led to lateral lining
methods. Market demand, particularly in North America, and
the expiry of original patents stimulated growth, and new faces
entered the marketplace.
The growth in demand has encouraged an increase in
liner and resin manufacture and distribution by companies,
beginning a progression towards commoditisation
leading to distribution of materials and equipment through
merchants and hire firms with limited technical support.
Immediate Past Chair of the ISTT, Dr Dec Downey.
Small diameter installation by pulling in, inflation and ambient
cure is less demanding than inversion and heat cure with
regulated installation pressures, curing and cooling cycles and
precise mixing equipment.
More recently, glass fabric linings installed by air inversion
and cured with steam and UV has grown popular for gravity
and pressure. In Germany, glass fibre liners make up 63 per
cent of liners installed, and UV curing methods are used in
Europe for 40 per cent of liners. Vinyl Ester and epoxy resins are
employed for extra chemical and temperature resistance; epoxies
are used for potable water linings. However, polyester resin is
preferred for the sewer rehabilitation, where market share is still
thought to be 90 per cent. The private sewer market, growing
strongly, uses epoxy resin and silicate resins.
There is a debate about the hazards involved in the use of
resins. Styrene, a major constituent in polyesters, is classified
in Europe as ‘possibly carcinogenic’. The UK HSE, working for
The first CIPP installation involved pulling into place a polyester-impregnated felt liner,
inflating and leaving to cure at ambient temperature.
Ambient temperature
Fabric tube impregnated with
polyester or epoxy resin.
Inflated against the pipe wall.
the European Union, has concluded there is no clear evidence
of a causal link between styrene and cancer mortality. Recently,
the US Department of Health and Human Services reclassified
Styrene as a ‘reasonably anticipated carcinogen’. The American
Composite Manufacturers Association contests this, but in
the meantime industry professionals have to determine how best
to respond.
Epoxies, though not listed as carcinogenic, are cited as very
toxic, requiring careful handling. These polymers are hazardous
on skin contact and dangerous if inhaled, so precautions must be
taken to protect installation workers who can become sensitised
after repeated exposure. The public are sensitive to odours; styrene
in particular is detectable in low doses, and epoxies have a
characteristic smell which can also raise concerns. Contractors
must take steps to safeguard the public and demonstrate compliance
with health and safety requirements.
Polymer resins shrink on curing. Crosslinking, the process
which generates strength and stiffness, and cooling both involve
a volume reduction. The extent depends upon resin type, curing
temperature, reinforcements and fillers. Measurements of shrinkage
for neat polyester are typically 6–7 per cent whereas epoxy
resins exhibit 2–3 per cent.
Does it matter? There are mitigating factors; mechanical
or chemical bonding restricts shrinkage and the installation
pressure expands the hot plastic pipe to restore the close fit,
counteracting shrinkage. Whilst it is easy enough to demonstrate
in the laboratory, the real problems may be minimal if the liner is
properly installed.
UV
Steam
Water
Cure: ambient temperature, steam,
UV light or re-circulating hot water.
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The issue has become a talking point used to promote one
material over another. However, it is more important to focus
on real issues: laterals and their joints, with the sewer main,
are responsible for 50 per cent of the infiltration. Effort is better
invested in sealing the system than bickering about the resin. The
challenge is to develop methods with improved productivity and
lower costs. This may find a fruitful testing ground in the UK with
the addition of 200,000 km of private sewers to the network, and
the introduction of new service standards by the Water Services
Regulation Authority.
Installation failures are rare where installers are properly
trained and owners supervise workmanship. International standards
like ISO11296 and corresponding ASTM documents can
inform quality contract specifications. Many call for trained engineers
and installers — admirable sentiments, but little training
is available. We need good courses in CIPP and education for
engineers to understand installation and quality issues. The 'out
of sight, out of mind' nature of the industry lends itself to mismanagement,
unless contractors and owners take good practice
and quality to heart.
The IKT Report has driven the popularity of glass-reinforced
liners in Europe. It details performance in tests of modulus,
strength, thickness and impermeability to establish liner fitness
for purpose. The reports, published since 2003, provide owners
with facts about compliance with standards. The drive for
improvement is leading suppliers to focus on materials. Progress
Sustainable low-emission products are
expensive but they will close the price
gap with increased use.
is being made in the US to develop resins. Sustainable low emission
products are expensive but they will close the price gap with
increased use. Reinforcing fibres provide a greater proportion of
product performance and lower resin usage minimises chemical
issues. Providers constantly strive to reduce costs, moving from
hot water to steam, and UV cure can cut hours off installation
times. Owners can develop efficiencies by encouraging innovation,
releasing work in packages, allowing contractors to best
use resources.
Thermoplastics may be another alternative. The Aqualiner
process developed with three UK WASCs has WRc Approval and
meets NSF61 for contact with potable water. Licensed to OnSite
Central, Aqualiner had its first commercial outing at Portland for
Wessex Water in 2010. The glass and polypropylene composite
has no hazardous constituents and a long life. The thermoplastic
provides the opportunity for welded joints and easy maintenance.
The liner exhibits a tight fit, high strength, good abrasion
and chemical resistance. This development is perhaps the next
generation in the ongoing story of CIPP linings.
Laying it on thick
During the trenchless rehabilitation of a 1,230 m long sewer with 600/900 mm oval profile in Berlin
Wilmersdorf, Karl Weiss Technologies GmbH installed a Brandenburger GFRP pipe liner with a wall
thickness of 11.9 mm.
In the first half of 2011, a sewer was
rehabilitated in downtown Berlin, not far
from the Kurfürstendamm. The rehabilitation
of a 1,230 m section of the oval
sewer in the Düsseldorfer Straße, from
the Brandenburgische Straße, up to
the Hohenzollerndamm became necessary
due to leaks, incrustations and tree
root intrusions.
Due to the special product characteristics,
the use of peroxides in the resin could be
omitted for the curing even though the walls
were quite thick. This allowed for a great
degree of flexibility at the construction site.
In order to reduce the inconvenience for
the local residents and traffic in the inner-city
area, the Berlin water utility called for tenders
to rehabilitate using Trenchless Technology.
For Karl Weiss Technologies GmbH, who
won the bid, this presented a great – but
challenging – opportunity.
Division Manager for sewer rehabilitation at
Karl Weiss and Site Manager for the Berliner
rehabilitation project Bernd Wiese said “On
the one hand, the dimension DN 600/900 mm
oval sewer is something special. On the other
hand, the length of over 1.2 km is a size that
you don‘t see every day.”
Foreman for the project Mario Montag said
“The installation of an oval profile is more
difficult simply because most of the sewers
are steeper. The demands on the construction
crew are clearly higher here than with a
circular profile.”
An elevating challenge
The water drainage proved to be a particular
challenge for this project. The water
conduit, which ensured the drainage and
was originally planned to be rehabilitated
on the pavement, had to be constructed at
an elevation of 5 m instead to minimise the
inconvenience for pedestrians during the
rehabilitation work.
Upon completing the first construction
section of the provisional 500 m pipeline,
which was equipped with a pump station,
the entire system was dismantled and then
reassembled at the second rehabilitation
section. The site also required a high degree
of organisation and logistical expertise due to
the construction site being located in a central
traffic-related area.
Mr Wiese said they were also trying to
achieve minimal disruption for local residents:
“Even if there is hardly any noise during
trenchless sewer rehabilitation, we still need
the understanding of the local residents. That
is why we carried out the actual rehabilitation
work only two workdays in the week.”
In order to utilise these days time-wise,
a special permit was needed from the
city administration.
No hybrid curing
The material for the individual rehabilitation
sections of 80–150 m lengths was produced
by the liner manufacturer, Brandenburger
from Landau, and was delivered readyfor-installation.
As storage is mandatory
in Berlin, the liner had to be available onsite
for the entire construction project.
Brandenburger
relining options
January 2012 - Trenchless International
Brandenburger
CIPP Lining
Trenchless sewer rehabilitation with seamless, UV light-curing GFRP pipe liners.
An approved system for more than 25 years:
More than 3 million metres of installed liners in 30 countries.
The BB plus liner:
- Diameters from DN 150 - 1000
- Suitable for circle, oval and special profiles
- Seamlessly wound with high
and durable strength
- Even wall construction
and constant stretch behavior
The advantages:
- Excellent quality due to the use
of high-grade materials
- Easy handling, short curing times
- High storage stability
- Lowest wall thicknesses due to excellent
mechanical characteristics
New: The Brandenburger Heatliner ®
for the heat recovery from sewage!
IFAT ENTSORGA
7 – 11 May 2012
Munich, Germany
Hall B4, stand no. 432
Come to see us!
Brandenburger Liner GmbH & Co. KG
Taubensuhlstrasse 6
D - 76829 Landau/Pfalz
Tel. +49 63 41 / 51 04 -0
Fax +49 63 41 / 51 04 -155
e-mail:info@brandenburger.de
www.brandenburger.de
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January 2012 - Trenchless International
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The construction site in the
Düsseldorfer Straße.
The water drainage was installed
at 5 m elevation.
Delivery of the sealed UV lightproof
liner at the construction site.
The liner is prepared for installation.
The tied liner head shortly
before being drawn in.
The liner is drawn in by
means of a conveyor belt.
Aerial photo of the I.S.T. head office in Germany.
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January 2012 - Trenchless International
Insertion of the light chain.
Pipe liners with a wall thickness of 11.9 mm
were required for the rehabilitation due to
the condition and the statics of the sewer in
the state of old pipe I. The installation of a
peroxide liner was necessary, because at a
wall thickness of over 10 mm, the curing is
not ensured to the outer liner edge by only
UV light and without an additional heat-curing
catalyst (hybrid or combination curing) on
many liner products.
As the project was located in the heart of
Berlin, this process was out of the question
for Karl Weiss. Storage for GFRP pipe liners
can be quite expensive and complicated
because of the additional catalyst for the
curing needing to be cooled continuously.
The curing of the liner is carefully
monitored and recorded.
Even for complicated projects that require liners with a
greater wall thickness, the development of the UV-curing
GFRP pipe liner has made it possible for trenchless
sewer rehabilitation without hybrid or combination, as
proven at the Berlin Wilmersdorf project.
The construction sites need to be precisely
planned and the liners have to be installed
directly out of the cooling wagon. In addition,
to prevent a curing reaction due to the warm
pressurised air during the erection of the
liner, a cooling pipe needs to be employed
during the installation itself. Problems
can arise quickly when there are delays on
the construction site or there are changes in
the planning.
Seeing the light
In Berlin, the sewer rehabilitation in
Wilmersdorf could nevertheless be executed
exclusively with light-curing GFRP liners.
Ensuring a complete curing, the development
of pipe liners from Brandenburger is
advanced so that the resin is triggered
to react by pure UV light even at greater
wall thicknesses.
Director of the order processing centre at
Brandenburger Philipp Bergmann said “This
lies, on the one hand, in the special wound
liner structure of the Brandenburger liner
and, on the other hand, on the transparent
resin-glass compound. This way, the UV rays
enter the material structure deeply and evenly
for the curing. A curing of the liner up to a
wall thickness of 12.6 mm is thus possible
without peroxide.”
According to Mr Bergmann, construction
sites have already successfully completed curing
pipe liners with a 13.3 mm wall thickness.
According to manufacturer specification, to
certify the complete curing, with greater
wall thicknesses, the speed at which the
nine-unit UV light chain, each with 1,000 watt
output, runs through the liner has been set to
40 cm/min. The curing time on construction
sections of 100 m lengths, an average realised
in Berlin, took about four hours.
For the sewer rehabilitation on the
Düsseldorfer Straße, this was a logistical and
economical advantage. In comparison to
using a peroxide liner, the new BB plus liner
from Landau allowed the rehabilitation work
in the middle of Berlin to be as flexible as
possible, and made the cost of transport and
storage significantly more beneficial.
Even for complicated projects that require
liners with a greater wall thickness, the development
of the UV-curing GFRP pipe liner
has made it possible for trenchless sewer
rehabilitation without hybrid or combination,
as proven at the Berlin Wilmersdorf project.
Innovative sewer rehab
Since 1998, Innovative Sewer Technologies, whose head office is located in Bochum, Germany, has
steadily developed and is now a leading provider of sewer rehabilitation products.
Designed and produced in-house,
Innovative Sewer Technologies (I.S.T.)
equipment, such as the Power Cutter 150
and 200, have unique features such as
milling robots. The company’s equipment
has contributed to its success, as well as
the high-quality items to assist with sewer
rehabilitation, such as spot repair liners
and lateral liners.
The established machine technology for
the treatment, installation and hardening
(using hot water, steam or UV light) of
lateral liners, has proven itself technically
and economically viable in the long term.
Completing the product collection, the
company has a wide range of sewer
camera systems, packers/shut-off bladders,
products for lateral connection
rehabilitation and building rehabilitation.
Emphasising the high quality of the company’s
systems are test certificates and
approvals from regulatory authorities.
Celebrating trenchless in Bochum
I.S.T. organised the first international
sewer rehabilitation conference
in Bochum, which was held from
15–16 September 2011, with nearly 400
guests from Germany and abroad.
I.S.T. sample hall.
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39

Jubilee in Barcelona
Twenty years after the first Tubetex liner was installed in Barcelona,
Spain, the ACSA Barcelona construction company is still employing
the Sekisui SPR Europe product as an effective method of pressure
pipe rehabilitation.
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January 2012 - Trenchless International
The established machine technology for the treatment,
installation and hardening (using hot water, steam or UV
light) of lateral liners, has proven itself technically and
economically viable in the long term.
Interesting topics and prominent guest
speakers, as well as several global innovations,
gave all the participants the opportunity
to experience the complex trade event.
The ceremonial opening of the new
production site played a big part in the
Connection rehabilitation with the Top Hat System for the realization
of permanent sealed lateral connections in various dimensions
and angles. The practice-oriented procedure is an economical
complement to the I.S.T. Liner System.
Seal materials made from polyester-needle felt and
respectively in combination with Advantex ® glass
fibre material, impregnated with the silicate
resin Easy Pur.
event's success. Thanks to the expansion
in mid-2011, all kinds of possibilities for
continued growth, further development
and the manufacturing of high-quality
products, as well as the best possible
customer service, are now available. Here,
For more information visit www.ist-web.com
quality ‘Made in Germany’ products can
be put into practice.
Part of the company’s corporate philosophy
has always been to work closely
with the market and customers and to
provide everything necessary from a single
source – including hands-on training
for skilled processors.
In recent years, the company has
expanded with branches now in
Scandinavia, Spain and the United States,
and has also acquired partner companies
in many countries around the world.
In early 2012, another branch will open
in Switzerland which will also serve Austria
and the western Mediterranean.
The new Power CUTTER milling robots combine a lot of useful
innovations with functional design with no supply lines to the
apparatus. The profitable alternatives for a wide range of uses.
Power CUTTER milling robots are ideally suited
to master even the most demanding tasks.
c r e a t i n g . v a l u e
I.S.T. Innovative Sewer Technologies GmbH . Rombacher Hütte 19 . 44795 Bochum / Germany
Phone: +49 (0) 2 34 - 5 79 88-0 . Fax: +49 (0) 2 34 - 5 79 88-55 . Mail: info@ist-web.com . Web: www.ist-web.com
Vicente Munoz, an engineer employed
by ACSA Barcelona and a member of the
French Sorigué Group, is responsible for
maintenance of the water supply network
in the Spanish coastal city. A pioneer in
trenchless pipe rehabilitation, Mr Munoz
and his team installed a Tubetex liner on
25 September 1991. A 210 m reinforced
concrete drinking water pipe below Passeig
Sant Gervasi in Barcelona was the first in
Europe to be renewed by this method.
Twenty years later, and only 7 km from
the first construction site in 1991, Mr Munoz
– still a staunch supporter of trenchless rehabilitation
– worked together with engineers
from Sekisui SPR Europe (SSPRE) in June
2011 on the rehabilitation of a 600 m water
pipeline in the middle of a residential area.
Tubetex rehabilitation in 2011
ACSA rehabilitated the circular profile
in DN500 mm with a special version of
Tubetex by SSPRE. In order to withstand
external pressure in exceptional cases, the
seamlessly-woven pipe liner, made of polyester
yarn, was reinforced by a felt layer
inserted into the Tubetex prior to installation.
The severely encrusted old pipe was first of
all prepared for inversion by high-pressure
cleaning, and then the material combination
was saturated in situ with resin.
The rapid pace of the construction was
due to the pressure drum inversion and the
project took only three weeks to complete
in six phases.
Mr Munoz said “Again we opted for the
Tubetex liner for this project, because it is
easily capable of withstanding the internal
pressures of 10 bar anticipated here
and significantly reduces friction on the
inside walls, resulting in less depressurisation
overall.
“After all, it has proven its quality over a
period of more than 20 years and has never
failed us over this time.”
Product with a long history
Initiated in 1985, with the support of the
University of Liège, located in Belgium,
the Tubetex liner was developed with the
common goal to manufacture a product for
renewing gas and water pressure lines.
Only one year later the first liner was
manufactured in the Belgian factory, which
still serves as a Tubetex production facility.
Tubetex installation, 1991: renewal of a drinking water pipe below Passeig Sant Gervasi in Barcelona.
Tubetex installation, 2011: rehabilitation of a 600 m water pipeline in a residential area of Barcelona.
In April 1987 the product became marketable
after intensive tests and research,
not to mention numerous trials, in impregnation
and was initially supplied in diameters
of 300–800 mm. In 1990, following considerable
demand for the initial product,
the second weaving loom for diameters
300–400 mm was taken into operation.
In the following years the Tubetex was
perfected and installation with the pressure
drum was professionalised. The improvements
of the coating for rehabilitation of oil
and gas pipelines were the principal development
stages.
Tubetex was the first product of Sekisui
NordiTube and the starting shot for an
excellent track record, and keeps urban
water network infrastructure intact.
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41

Montreal saves with lining
From felt to glass fibre liners
Sanexen Environmental Services Inc. has successfully completed the rehabilitation of
approximately 33,000 ft of water mains for the City of Montreal, located in Canada.
Since 1982, the Saertex Group has been a leader in the production of glass fibre and carbon fabrics.
With eleven manufacturing facilities in seven countries, Saertex employs 800 people.
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January 2012 - Trenchless International
The scope of work for this project
included the structural rehabilitation of the
water mains and the trenchless replacement
of lead services, when required,
from the water main to the property line.
As the seventh-largest city in North
America, the City of Montreal’s Water
Services Division is responsible for
the production and distribution of
potable water and the collection and
treatment of its wastewater. It manages
NORDIPIPE
over 2,640 miles of water mains, of which
2,200 miles are small diameter distribution
mains, which serve more than 1.6 million
people, businesses and industries.
At the turn of the century, the City of
Montreal conducted several studies in an
attempt to help it restructure its Water
Division, which at the time was decentralised
between the city centre and the
19 boroughs. In 2005, this restructuring
led to the founding of the present Water
NORDIPIPE is a high quality, glass-fibre-reinforced liner for
the rehabilitation of water mains. The glass-fibre reinforcement
gives its pipe liner structural, self-supporting properties and
allows it to withstand high internal and external pressure
without the host pipe. Diameters from 150 mm (6 inch) up to
1200 mm (48 inch) are possible.
Make your connection: visit www.sekisuispr.com or mail
info@sekisuispr.com for more information!
Services Division and the setting up of a
dedicated water fund. At the same time,
the city also started an asset management
program, whose master plan proposed
massive investments in its water and
wastewater infrastructures including the
rehabilitation of its water mains, for the
next 20 years.
Saving with trenchless
Every year the city spends a tremendous
amount of money to repair water
main breaks, in addition to the costs
related to the water lost in the process.
In order to reduce the number of breaks
and leaks in their water system, the city
started systematically rehabilitating their
water mains with structural cured-in-place
pipe (CIPP) liners.
In the last four years the city has
rehabilitated over 150,000 ft of small
diameter distribution water mains with the
use of Aqua Pipe, a structural CIPP liner.
From 2008–2010, the city saved over
$CDN60 million ($US58.3 million) in direct
costs for the structural rehabilitation of
approximately 120,000 ft of water mains,
compared to replacing the pipes using the
open cut method.
In addition, the city also eliminated
or greatly diminished many social costs
associated with the open cut method.
It is also interesting to note that the six
filtration plants in Montreal reduced their
water production by 12 per cent between
2000 and 2010 thanks to leak detection
combined with the replacement and rehabilitation
of its water mains.
For more information visit
www.aqua-pipe.com
Beginning in 2001, Saertex US started
production in its state-of-the-art manufacturing
facility in Huntersville, North Carolina,
near the economic centre of Charlotte.
Since then, production has been expanded
to a total of more than 120,000 ft square,
which represents the largest multi-axial fabrics
facility in the Americas.
The fabrics produced there are used in
a number of different industries, including
automotive and aviation, wind, shipbuilding,
sports and recreation, as well as the
construction industry – such as GRP reinforcements
for pipe rehabilitation like the
Saertex-Liner.
The Saertex–Liner, a glass fibre-reinforced
pipe liner and core product of Saertex
multicom, has been successfully used in
Europe for more than 20 years. The pipe
liner replaces felt liners so far used by
communities to line wastewater and stormwater
pipes.
The liner has a proven 70-year lifespan,
which makes its use extremely economical.
In addition, less labour is needed to carry
out its installation compared to traditional
felt liners and is, in many respects, the most
environmentally-friendly method to rehabilitate
wastewater and storm pipes.
Saertex multicom is using the sophisticated
infrastructure in Huntersville as its
basis of operation in the Americas.
Curing with UV
In 2009, Saertex multicom opened a
distribution warehouse in Denver, Colorado,
and invested in the latest UV-curing technology.
UV systems are available for rent,
lease and purchase. The company also
offers a mobile UV rig for installations in narrow
environments.
The installation with UV systems in combination
with the Saertex high performance
UV resin is very fast due to extreme short
curing times – up to 6 ft/min. Professional
and highly-experienced technicians train
and support customers on all aspects of
installing the Saertex-Liner.
In September 2011, Saertex hosted a
product demo at its US headquarters in
Huntersville. The program was organised
and moderated by experts of Saertex multicom.
More than 20 city officials from
surrounding communities, contractors and
engineering firms joined the demonstration
and were impressed by the simplicity and
rapidness of the UV-curing method.
Explanations given by Saertex engineers
during the demonstration.
The extreme strength of the product after
the curing process had been carried out,
led to great enthusiasm. The enormous
strength of 1,740,453 psi (flexural modulus)
was also demonstrated to the attendees by
placing the 26,000 lb Saertex UV truck onto
the just-cured GRP liner without doing any
damage to the cured liner material.
With a great response from the local
and outlying communities interested in the
product, Vice President Mark Hallett said
the demo was quite a success.
Saertex US plans to carry out further
demonstrations to present their liner technology
to interested parties in 2012.
LINING SOLUTIONS
FOR THE
21ST CENTURY
Glass fiber reinforced, UV light cure pipe liner:
UV light core curing a Saertex-Liner.
Keine Kompromisse SAERTEX-LINER bei der Kanalsanierung.
®
SAERTEX multiCom ® LP
Installation per ASTM 2019
Chemically tested and engineered per ASTM 1216
Higher relined flow rate than traditional felt liners
No styrene release
No licence fee or restricted territories
Professional training of new installers
Rental equipment for UV-light installation available
Saertex UV Truck onto just cured GRP liner.
For more information contact Mark Hallett at m.hallett@saertex.com
www.saertex-multicom.com
high quality,
corrosion resistant
glass fiber
12200 - A Mt. Holly-Huntersville Rd. _Huntersville, NC 28078 _ USA
Phone: +1 704 584 - 4059 _ Fax: +1 704 464 - 5922 _ E-Mail: multicom@saertex.com
relining options
January 2012 - Trenchless International
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43

Do you have what it takes
to uphold your required
specification?
As a consulting engineer to a municipality or as the owner of a municipal infrastructure do you have
what it takes to uphold the ASTM specification of a CIPP product even if it means not accepting the
lowest price submitted?
The operating engineers of the
City of Fort Saskatchewan, a suburb
outside of Edmonton, Alberta, Canada,
recently faced this difficult decision. The
city recently issued a tender that specified
for the manhole-to-manhole lining of
an estimated 1,100 m of 8 inch mainline
sewer pipe, as well as the rehabilitation
of 101 service connections, including the
laterals that go to the cleanout of the
house. The tender specified and required
that the lateral products adhere to the
ASTM F-2561-06 standard. This standard
is defined as: the rehabilitation of a sewer
service lateral and its connection to the
main using a one-piece main and lateral
cured-in-place pipe (CIPP) liner.
IVIS Inc. was one of the service providers
that submitted a bid that offered
a product that complied with the ASTM
F-2561 standard and IVIS Inc. is a licensed
installer of the Performance Liner T-Liner
process by LMK Technologies. This system
has been designed and engineered to
produce a long-term structural CIPP main
to lateral lining that reduces infiltration and
exfiltration, eliminates root intrusion, and is
engineered to provide a minimum 50-year
service life.
This one-piece, structural CIPP lining
complies with ASTM F-1216 appendix
x1 and incorporates gasket-sealing technology
to make a water tight compression
sealed connection that is compatible with
all manhole-to-manhole liner systems.
Operations Manager and IVIS Engineer
Roger Ficko noted that during regular
consultations with the City of Fort
Saskatchewan, “they were extremely satisfied
with the Performance Liner and
T-Liners that were installed on previous
projects in Fort Saskatchewan and the
same was also true for the complimentary
trenchless cleanout product called
VAC-A-TEE, a process for installing a
new cleanout through a small diameter
(20 inch) vacuum excavated bore hole.”
The installation of these VAC-A-TEE
cleanouts serves several purposes, such
as: verification of pipe diameters, proper
measurements for transitions and liner
lengths; pipe cleaning (removal of fats, oils
and grease), root cutting; proper positioning
of lateral CIPP lining; and verification of
successful installation, to name a few. The
external cleanout not only allows the work
to be done correctly, but it also allows
a visual inspection access for any future
inquiries or maintenance. Additionally, this
system minimises risk to the contractor
during the installation process by allowing
the contractor to insert a plug on the
upstream side of the cleanout which prevents
unexpected flow during the inversion
and curing processes.
To date, IVIS Inc. has installed just under
300 ASTM F-2561 compliant CIPP lateral
liners in the City of Fort Saskatchewan
since 2009 ranging from 30–132 ft in
length. LMK has over 60,000 Performance
T-Liners installed throughout North
America. Recent warranty CCTV inspection
was conducted on the Fort Saskatchewan
T-Liners and they were found to be in the
same condition as they were on the date
of installation, and all infiltration was eliminated.
The city of Fort Saskatchewan is
beautifully situated on the southern banks
overlooking the North Saskatchewan River
and its roadways are lined with boulevards
full of trees.
Robin Benoit, City of Fort Saskatchewan,
Department of Public Works said “Root
intrusion is the number one issue that we
are dealing with when it comes to preserving
the function of our wastewater
collection system. We believe that CIPP
lining of the sewer mains with an effective
structural CIPP seal at the lateral interface
“We believe that CIPP lining of the sewer mains with an
effective structural CIPP seal at the lateral interface will
preserve the operational integrity of our sanitary system
for the next 50–100 years.”
—Robin Benoit City of Fort Saskatchewan
Department of Public Works.
will preserve the operational integrity of our
sanitary system for the next 50–100 years.”
Project Manager for IVIS Inc. Chad Eaton
said “Although the tender called for the
ASTM F-2561 specification as it applied
to the rehabilitation of the service laterals
the city did have the option with respect
to deciding as to whether the specification
would be adhered to.”
He also noted that the “tender document
clearly states that the lowest bid will not
necessarily be accepted either.”
The City of Fort Saskatchewan sanitary
and sewer rehabilitation team, with much
concern, sought out the positives and
negatives and made an educated decision
to uphold the ASTM F-2561 specification.
They decided that upholding the specification
was the most prudent thing to do for
the residents of this city.
“Upholding the specification offers us a
calculated engineering design that ensures
our infrastructure will receive an effective
life extension of another 50–100 years,”
said Mr Benoit, “and IVIS Inc. as a service
provider in tandem with the T-Liner
and VAC-A-TEE serves our community
most effectively.”
Written with permission of the City of
Fort Saskatchewan.
January 2012 - Trenchless International
relining options
relining options
January 2012 - Trenchless International
44
45

vacuum equipment
January 2012 - Trenchless International
An economical disposal
Trenchless construction sites can produce waste disposal that can be quite costly to remove.
This is where the ABS Trenchless BentoVac system can help – removing solids bearing slurries
at an economical cost.
During the 1990s, horizontal directional drilling (HDD) became
more popular throughout Europe and ABS Trenchless embarked
on designing and manufacturing products for the Trenchless
Technology industry.
Through site-based knowledge and experience, the company has
designed and developed useful tools and accessories, including the
BentoVac systems.
The BentoVac systems can be used to remove liquids for various
applications on construction site, where solids-bearing bentonite or
polymer slurries are used – for example HDD, piling and tunnelling.
The vacuum suction systems, manufactured by ABS Trenchless,
are developed specifically for the foundations and trenchless industries,
and are available in various versions. Each version includes:
• Container sizes from 100 L up to 5,000 L
• Fully galvanised containers
• Pressure/vacuum compressors up to 25,000 L/min
• Various compressor drive units (petrol or diesel driven engines,
three-phase 380 V, hydraulic and automotive accessory drives)
with mobile and static versions
• Trailers with greater ground clearance and adjustable
height couplings
• Dependent upon application, various accessories and equipment.
On numerous projects throughout Germany, Revor
Reuschenbach-Vorwerk GmbH used the BentoVac system to
Innovative
Quality Products for
Trenchless Specialists
Products:
RBS Rope Bursting Systems
ABS Auger Boring Systems
BentoVac Mud Vacuum System
Pulling Heads
Accessories for HDD
ABS Trenchless GmbH
Wintersohler Straße 5 • 57489 Drolshagen, Germany
Tel.: +49 2761 7053-0 • info@abs-trenchless.com
www.abs-trenchless.com
remove small quantities of benonite resulting from laying pipes with
a diameter up to 90 mm.
A spokesperson from the company said “The prices of waste
disposal nowadays are so high that it is very economical to use a
BentoVac, especially when we deal with smaller diameters.”
The BentoVac system can be used for many different applications,
which include:
• Removal of very sandy drilling muds for piling applications
• Suction of residue liquids or emulsions (e.g. recycling companies,
environmental protection)
• Removal of liquids with solids/sediments
• Cleaning of drains, sewers, shafts, pits, basins, channels,
and tanks
• Emptying of mobile lavatories and sewers.
The BentoVac system.
For more information visit
http://www.abs-trenchless.com
Tunnelling success
Down Under
The Melbourne Main Sewer Replacement, an historic upgrade of Melbourne’s century old main sewer,
has progressed well over the past twelve months and is tracking ahead of its scheduled mid-2012
completion date.
The Melbourne Main Sewer
Replacement (MMSR) involves the construction
of approximately 2.3 km of new sewer in
and around inner-city Melbourne.
The new sewer, which begins in the
Docklands precinct, crosses the Yarra River
upstream of the Charles Grimes Bridge and
continues into Port Melbourne, is being built
with the assistance of a specially-designed
tunnel boring machine (TBM).
The MMSR is an important project for
the city that will deliver health and environmental
benefits to meet the future growth
of Melbourne.
Major developments
2010–11 has seen many significant
advances made on the project. The 140
m, on-grade crossing of Melbourne’s iconic
Yarra River was completed in February this
year, following the installation of the final section
of 2.4 m diameter pipeline. Construction
was undertaken in three stages to ensure
the Yarra River remained open to river users
for the duration of works. Specialist divers
worked in zero visibility conditions, installing
sections of the pipe within a wet cofferdam.
Another major development occurred
in April 2011, when the project’s
164 tonne, 93 m TBM completed the final
section of tunnel to emerge at the South
Wharf shaft site in the Docklands area.
This second and final major tunnel drive on
the project marked the completion of over
18 months of tunnelling under Melbourne’s
inner suburbs.
Project challenges
At the project’s beginnings in 2005,
Melbourne Water, together with project
partners, contractor John Holland, designers
GHD and project manager Aurecon,
knew that the MMSR would not be without
its challenges.
“The 875 m final tunnel drive was one
of the most challenging engineering feats
of the project due to difficult geological
conditions, which saw the specially
designed Earth Pressure Balance (EPB)
TBM steered through soft clay-like Coode
Island Silt, and around critical infrastructure,
including the M1 Freeway,” said Melbourne
Water Project Director Phil Corluka.
“In undertaking these essential replacement
works, the MMSR team has developed
a good understanding of geology and
hydrogeology, being the first to mechanically
tunnel through the Yarra Delta, their
most notorious being the Coode Island
Silt, which provided significant challenges
to the original constructor in the 1800s.
The learnings gathered on this historic
project provide fantastic knowledge for
future projects and for soft ground tunnelling
as a whole.”
In addition to two major tunnel drives
and a river crossing, the MMSR also
encompasses the construction of 1.9 km
of localised branch and reticulation sewers.
To minimise impacts on the local
community, Trenchless Technology has
been effectively utilised to install smaller
reticulation pipes ranging in diameter from
300-500 mm. Smaller shaft sites,
situated within densely populated suburban
streets, have been used to complete this
intricate set of works.
Vital infrastructure
The MMSR is an important project that will
deliver health and environmental benefits to
meet the future growth of Melbourne. The
new sewer will have three to four times the
capacity of the existing sewer and will service
the CBD and the fast growing Docklands
precinct, which is expected to be home to
20,000 residents, and workplace for 25,000 in
15 to 20 years' time.
The MMSR is currently tracking ahead of
schedule, under budget, and has successfully
overcome many challenges encountered
throughout construction. Early identification
and mitigation of these challenges has been
paramount in achieving many milestones on
the project. Identifying potential risks and
issues has been fundamental in planning for
“The 875 m final tunnel drive was one of the most
challenging engineering feats of the project due to
difficult geological conditions.”
both the successful completion of construction,
and the quality of the final product,
which will service the city of Melbourne for
another century.
Looking ahead
With fresh climate extremes breaking
records in 2010–11, the importance of a
robust network of water supply, drainage
and sewerage infrastructure has become
clearer than ever. Mr Corluka said that as
Melbourne Water works towards the completion
of the MMSR, and looks ahead to
the next infrastructure installation and rehabilitation
projects, Trenchless Technology
will continue to assist in the delivery of
their works.
Branch and reticulation sites.
Final tunnel breakthrough.
projects
January 2012 - Trenchless International
46 47

Two cities, one continuous bore
Traversing two affluent US towns, through the suburbs of Fort Worth in Texas and beneath two golf
courses, the Fossil Ridge to Arc Park project ranks among the longest continuous bores in trenchless
pipeline history.
HDD – the South
African experience
by Neil van Rooyen, TT Innovations, Cape Town, South Africa
Here Neil van Rooyen explains horizontal directional drilling in South Africa using three case studies:
Berg River Duct Installation, Diep River Water Pipeline Installation and the Bulk Water Main Installation
under various roadways for the Mossel Bay Desalination Plant Project.
HDD
January 2012 - Trenchless International
The Fossil Ridge to Arc Park (FRAP)
project has the distinction of being the
longest horizontal directional drilling (HDD)
bore attempted in a vast natural gas
deposit in project owner Chesapeake
Energy Corporation’s history. The FRAP
pipeline serves as a gathering and transportation
route for the immense deposits
of natural gas contained within the Barnett
Shale, a geological formation resting
underneath the state of Texas.
More than a dozen of the best site
managers, engineers and safety experts
in the trenchless business were on site
as the project kicked off at North Park
in Haltom City, Texas. After months of
preparation, Chesapeake identified a path
that routed the pipeline through urban
surroundings to its intended destination.
Although the pipeline was pulled across
and under high-volume roads, as well as
beneath public areas such as parks and
The Vermeer HDD rig in action.
golf courses, there was minimal interruption
or inconvenience — in fact, most
residents and businesses along the route
had no idea what was taking place some
41.2 m below.
Rock around the clock
Driver Pipeline, headquartered in Irving,
Texas, completed the bore to connect
a 61 cm pipeline to a main compressor
station with well pads northeast of
downtown Fort Worth. The Driver Pipeline
crew secured their Vermeer D1000x900
Navigator drill and began the three month,
24/7 drilling project. The crew worked
around the clock, safely navigating and
boring. They selected a 22.2 cm rotor
cone bit with mud motor, and 9.1 m sections
of 12.7 cm diameter drill pipe for the
pilot bore.
With such tight tolerances (45.7 cm
left to right) specified in the bore plan,
there was little room for error. While the
entry angle of 15 degrees, en route to an
average drilling depth of 36.6 m, might
be considered somewhat steep, Driver
Pipeline HDD Superintendent Harold Kay
explained the rationale: “Having extensive
experience in and around the Fort Worth
area, we were already aware of a rock
ledge that exists at about 9.7 to 10.4 m
below the surface,” said Mr Kay.
“If first contact with that ledge is made
at less of an angle, say six to seven
degrees, the drill bit is likely to deflect
and skip off the top. When this happens,
the radius is too small for accommodating
the large-inch diameter pipe. At the
15-degree entry angle, we felt confident
that when we reached the rock, the angle
was sufficient for the bit to grab and hold
on the first try.”
Set design
Space restrictions and limited accessibility
dictated that the initial area begin
small, with the spoil being removed from
the bore path and hauled away via vacuum
trucks and daily dump trucks used
to remove large solids.
After 15 days of near-continuous
drilling, the pilot bore was completed successfully
and the Driver team of trenchless
experts was eager to get underway with
backreaming and pullback. This required
three additional bores of 45.7, 66 and
finally 91.4 cm, to achieve the circumference
required to accommodate
the 61 m X65 FBE coated steel pipe
during pullback.
Staging pullback
After completing the pilot bore in
15 days, the Driver Pipeline crew was
able to facilitate completion of the three
reaming bores in 28 days, averaging
approximately 109.7 m every 12 hours,
all while preparing the pipe for its final
permanent home situated some 36.6
m underground. Pullback of more than
1.6 km of steel pipe was all that remained
to secure another successful installation
for the cast and crew of Driver Pipeline.
These case studies are based on the
following considerations:
• Understanding the client’s project
objectives, construction constraints
and the importance of its successful
implementation.
• Determining the best solution by considering
all construction options in terms of
their financial, environmental and social
impact, and why the eventual decision to
use horizontal directional drilling (HDD).
• The construction process for each HDD
installation.
• Lessons learnt and future recommendations
for similar HDD installations.
Case study 1: Berg River
duct pipeline installation
Quick facts
Location: Berg River, Velddrift
(approximately 145 km north of
Cape Town)
Diameter of pipeline installed:
multi-duct – 4 x 160 mm
diameter HDPE ducts (installed
in two parts)
Length of installations: 168 m
and 164 m
Obstruction traversed: Berg
River – approximately 140 m
wide and 9 m deep (approximate
measurement taken along the
bore path)
Client: local power utility
Main Contractor: Racec
Electrification
Drilling Contractor: TT
Innovations (Pty) Ltd.
Project Background
The installation of the duct pipelines
under the Berg River formed part of an
initiative to upgrade the existing power
supply to the Velddrift area. Two existing
power feeder cables, suspended below the
Carinus Bridge, served as the main power
supply to the town and local fish factories.
As this section of road (including the bridge)
was scheduled for future upgrading, it was
decided to install the new power supply
cables beneath the river instead.
View of the drill
rig positioned
alongside the
Berg River
and opposite
perspective
of the Carinus
Bridge.
Apart from the obvious construction constraints
with regards to trenching across a
river of this magnitude, the importance of
this water body to the local fishing industry,
tourism and its ecology, played a major role
in the decision-making process regarding
the method of construction.
Any diversion of the river course or activities
that would cause flooding of the river
banks would result in dire consequences for
both the natural habitat and human inhabitants
along this river.
Considerations
HDD was chosen as the method of installation
based on its minimal impact from a
construction, environmental and economic
perspective when considering the following
factors:
• Critical factors: the ease of construction
and minimal disruption to the
environment meant that HDD was a
cost-effective solution.
• Project constraints: the large body of
water that needed to be crossed and
limited site access, in conjunction with
sensitive ecological areas meant open
cut construction would require costly
dewatering
• Long-term effects: the construction
must be of a short-term nature and
unobtrusive, must not cause any detrimental
effects to the river ecology and
consequently the local fishing industry;
pollution resulting from construction
activities must be minimal – and is synonymous
with a small site footprint (as is
the case with HDD).
• Available expertise: the electrical contractor
(main contractor) was not geared
for major civil engineering work. Any
additional sub-contractors appointed to
undertake an open-cut installation would
prove too costly. Specialist drilling contractors
were available and equipped
to undertake an installation of this
magnitude.
Construction
Incremental measurements of the river
invert were taken using a boat and survey
equipment. The depth of the river was
determined to be approximately 9 m at
the deepest point (due to close proximity
of the sea, and subsequent tidal nature of
the river, a mean water level between low
tide and high tide was used for the depth
calculation). A bore plan was derived using
this data with a maximum pilot bore depth
reaching 3 m below river invert level. The
initial 150 m pilot bore proceeded without
incident apart from intermittent navigational
signal losses and, after various steering
corrections, reached the target. Reaming
commenced immediately thereafter.
The drill rods were attached to the rear of
the reamer, trailing it during reaming. During
one of these reaming stages, the spindle of
the reamer detached due to a suspected
bearing failure causing metal fragments
to be left behind in the bored tunnel. The
tunnel was consequently abandoned and
a new pilot bore installed adjacent to the
previous tunnel.
HDD
January 2012 - Trenchless International
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49

HDD
January 2012 - Trenchless International
Despite these trying circumstances and setbacks the
contractor persisted. Salt water-compatible bentonite
was used for this attempt and the bore path lengthened
to 168 m to allow for a flattened incline curve.
With the new tunnel successfully bored
and all the reaming stages completed the
original 3-pipe 160 mm diameter HDPE
duct configuration was attached to the
reamer and inserted. However, the installation,
ground to a halt just as the reamer and
product pipe passed the pivot point along
the final incline of the curved bore bath. The
rapidly increasing forces had exceeded the
rig’s pulling capacity.
Later investigation revealed that this was
largely due the bentonite being degraded by
the high salt water content of the insitu soil.
The drilling fluid, a water and bentonite mixture,
could therefore not perform its primary
function of transporting the soil cuttings to
the surface. The resultant soil build-up in
the tunnel (increasing the friction along the
pipe), in conjunction with the steep final
incline, ultimately led to the rapid increase
in pulling force.
The salinity of the ground water was never
considered, as the Berg River is a freshwater
river. A nearby freshwater lake also seemed
to support this notion. It was, however, later
learned that the river becomes salty at high
tide and fresh again during the low tide.
After numerous unsuccessful attempts at
getting the pipe unstuck, the only apparent
solution was to free the product pipe
from the reamer. To do this, the contractor
manufactured a device that attached to the
end of the drill rods, which extended a set of
cutting blades when forced outward by the
drilling fluid pressure.
The drill rods and cutting head were then
inserted from the rear of the HDPE pipe.
With the blades extended, the drill rods
were rotated, severing the HDPE pipe and
releasing it from the reamer. This option
rendered the HDPE pipe unusable as any
attempts to remove the partially-installed
pipes resulted in over-stretching which
deformed and restricted the useable crosssectional
area of the pipe. The reamer was
retrieved and re-used.
Despite these trying circumstances and
setbacks, the contractor persisted. Salt
water-compatible bentonite was used for
this attempt and the bore path lengthened to
168 m to allow for a flattened incline curve.
It was also decided to increase the tunnel
size and change the pipe arrangement from
a 3-pipe to a 2-pipe configuration. The client
duly elected to also install a fourth duct for
future use.
These measures were successful and
culminated in two successful installations
measuring 168 m and 164 m each.
Case study 2: Diep River
water pipeline installation
Fast facts
Location: Adjacent to Gie Road,
Table View – Cape Town
Diameter of pipeline installed:
315 mm diameter HDPE PN12
Length of installation: 200 m
Obstruction traversed:
Diep River – seasonal river
and wetland ecosystem
Client: City of Cape Town
– Water and Sanitation
Department
Main Contractor: TT Innovations
Drilling Contractor:
TT Innovations Pty Ltd.
Project background
A 250 mm diameter asbestos cement
pipeline formed part of the distribution network
emanating from an upstream reservoir
which fed the residential area of Table
View. Technicians traced a major leak to
a section of this pipeline situated within
the river stream. Due to the high ground
water table, wetland area, location and
depth of the deteriorated pipeline, the local
authority decided to replace this pipeline
section using pipe bursting. This option
was discarded due to various bends along
this section of the pipeline, its depth, and
the associated dewatering required. HDD
was proposed as an alternative installation
method and subsequently met the client’s
objectives from an environmental, technical,
financial and project duration perspective.
Aerial view and layout of AC pipeline
(source Google Maps 2011)
Considerations
The water supply needed to be restored
in the shortest time possible without jeopardising
the local ecology and environment.
The following factors where therefore
evaluated:
• Project scope: the 200 m span was well
within the HDD equipment parameters.
• Site considerations: the remote location
of the drill rig set-up meant that costly
dewatering could be avoided.
• Environmental constraints: the use of
HDD enabled a short project duration
and also resulted in minimal disruption
to the natural surroundings.
• Long-term solution: the new pipeline
was installed at a depth of 5 m below
the river invert, safeguarding it from any
severe environmental changes to the
river system (flooding or erosion).
Construction
The drill rig was setup on the residential
side of the river embankment alongside
a communal swimming pool. The actual
water stream was minimal and enabled the
pilot bore to be tracked by conventional
walk-over methods. Due to the urgent
nature of the project, extensive geotechnical
investigations were not performed but
the insitu soil conditions were largely considered
to be argillaceous (clayey).
The actual tracking of the pilot bore
proved to be the most challenging aspect
of this project. Major interference was
encountered along sections of the bore
path, leading to an erratic signal and
improper drill head location. A large portion
of the pilot bore was installed ‘blindly’
as the rig operator lost signal as well as
navigation visuals on the onboard instrumentation
on the drill rig.
Being closer to the signal source (sonde
located within the drill head), the field
operator was able to receive the signal and
view the visual display on the hand-held
navigation instrument. This enabled the
field operator to relay vital information such
as the drill head position, inclination and
location to the drill rig operator via two-way
radio. After much correction and adjustments,
the pilot bore eventually exited on
target at the pre-constructed exit pit.
At this point, the 315 mm class
12 HDPE pipe was already welded,
pressure tested and in position for the
installation. The pipeline itself was also
filled with water to counteract buoyancy –
in an effort to reduce frictional resistance.
A suitably oversized tunnel was bored
and the pipeline installed without any further
complication. The pipeline was then
re-connected to the existing network and
the water re-routed through the newly
installed pipeline.
Case study 3: Mossel Bay
desalination plant pipeline
installations
Fast facts
Location: Mossel Bay, Southern
Cape (approximately 392 km
from Cape Town when heading
east along the coast)
Diameter of pipelines installed:
800 mm
Length of installations:
46 m and 50 m
Obstruction traversed: two main
roads, Louis Fourie Road and
Alwyndal Road
Client: Mossel Bay Municipality
and PetroSA
Main Contractor: Entsha Henra
Drilling Contractor:
TT Innovations Pty Ltd.
Project Background
Owing to a spate of droughts in the
Southern Cape Area, the local municipality
of Mossel Bay and private sector stakeholders
financed and approved the construction
of a desalination plant along the nearby
coastline – along with the associated new
bulk water pipeline infrastructure (greenfields),
two of which crossed main roads.
The local roads’ authority, however, insisted
on the use of Trenchless Technology for the
main road crossings. HDD was decided as
the trenchless solution to be employed.
View of the final reamer size and 800 mm
diameter HDPE sleeve
Considerations
• Network of services to be crossed: only
narrow installation window available.
• Cover depth of pipe: due to large pipe
diameter and position of existing services,
the pipeline was installed at a
relatively shallow depth.
• Available water: due to drought conditions,
only treated effluent was available
for the drilling fluid mixture.
Construction
The pilot bore under Alwyndal Road
commenced without any incident and was
completed on schedule. The only delay
was caused by a temporary disruption
to the effluent water supply, which was
used for drilling fluid mixture. Reaming
proceeded at a slow but steady pace with
the reaming rate of progress slowing as the
reamer size increased.
Due to the large diameter of the pipe to
be installed, the frictional force caused by
buoyancy had to be counteracted. Instead
of the conventional closed front end, where
the pulling head connects to the pipe, it
was decided to leave this front end open –
thereby creating an open-ended pipe and
cancelling any buoyant forces.
After installation, any drilling mud
or spoil which collected within the pipe
could be removed by conventional
pipe-cleaning methods. Further to this, the
shallow cover over the pipe also increased
the risk of drilling fluid escaping to the surface
through the above soil layers due
to excessive fluid pressures within the
tunnel (frac-out).
Once all the reaming stages were successfully
completed, the 800 mm diameter
HDPE pipeline was installed.
The actual installation duration of the
pipe was minimal when compared to the
various reaming stages. Using the drill rig,
the 630 mm diameter HDPE product pipe
was inserted within the 800 mm pipe.
The product pipe simply displaced the drilling
mud and no additional pipe-cleaning
was required.
The Louis Fourie installation proceeded
in similar fashion, with the only delay
being caused by mechanical failure on the
mixing tank.
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digged out pipe after
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with filled voids
HDD
January 2012 - Trenchless International
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51

Boring through a steep slope
by Günter Naujoks, Tracto-Technik, Lennestadt
When travelling on a 400 m high bridge on ‘Sollstedter Hölle’ (‘Sollstedt Hell’) Mountain, located in
Germany, Günter Naujoks wondered whether this name would prove to be a bad omen, given the
challenges of the job at hand.
The boring project faced by Tracto
Technik (TT) sought to renew an ageing gas
pipe over a length of 2 km from the ‘Sollstedt
Hell’ to the gas pressure regulation unit at
the town of Sollstedt. The project also aimed
to improve the storage capacity to regulate
the availability of gas quantities by renewing
and increasing the pressure step in the pipes
from 25 bar up to 70 bar (PN 70).
Main Contractor E.ON Thüringer Energy
(ETE), awarded the task of carrying out the
construction component of the project to
Boyen and Doyen, who in turn engaged
Beermann Bohrtechnik GmbH of Riesenbeck
to carry out the horizontal directional drilling
(HDD) bore.
The HDD rig chosen to install the new bore
was a Grundodrill, Type 25 N, manufactured
by Tracto-Technik of Lennestadt, Germany,
which is a unit that Beermann has been successfully
using on boring projects since 2008.
The welded pipe length pulled with a winch towards the bore hole.
A mud motor could not be applied due
to very tight working conditions and the
inclination of the bore. Therefore, the use
of an aggressive boring-head, with special
hard metal bore tips, seemed to be the only
solution. A depth sonde (with 28 m depth
capacity) from specialist steering systems
manufacturer DCI was fitted for the monitoring
and steering. The cover on the steep
slope was almost 25 m deep in parts. This
caused the signal to be relatively weak, and
at times it was only marginal.
Boring through
Two pilot expansion bores, with 250 mm
and 350 mm diameter reamers, followed
relatively quickly with the runs taking just five
minutes per drill rod length to pull through.
The consumed drilling fluid was collected at
the target point and passed on to a second
deeper pit at the access road.
From there the drilling fluid was disposed
of by a suction/vacuum transporter. The
fluid consumption was considerable at
150 L per running bore metre. After each
expansion bore the backreamer was pushed
back through the bore hole in order to
compress and rinse out the bore spoils
from inside the bore at its deepest point.
This cleaning process was vital in order
to prevent the product pipe getting stuck
when it was finally pulled in. After the final
cleaning process the bore was cleaned
thoroughly and made ready for installing of
the product pipe.
Some twelve steel pipes, with an outer
diameter of 200 mm, and a PE and reinforced
fibre glass coating, were welded
together, x-rayed and checked for tightness
with water at 100 bar. Then the PE and reinforced
fibre glass coating were reinstated at
the welding point.
Four 500 mm diameter HDPE pipes
installed along with the gas pipe, with a
4.6 mm wall thickness, were pulled in to
host the control cable and also for the filling
of the annular space, which is necessary
after the installation.
A Bagela cable winch pulled the pipe
string uphill to the bore hole. The pipe installation
process began as soon as the final
backreamer had been connected.
The weight of the pipe string was calculated
to be 5.7 t. The tensile load was an
average of 9 t, well below the reserve load
of 25 t available to the boring rig. It took
around one and a half hours to complete
the installation.
Sealing the deal
The bore annulus sealing was carried out
the next day. To do this, the bore hole was
lagged at the bore exit point to give the
seal the security to withstand the strains of
In the green cave of Sollstedt grundodrll
25 N at work.
the filling process. The filling of the annular
space along the HDPE pipe gave the gas
pipe a secure position and bedding, preventing
corrosion of the outer pipe surface and
stopping the penetration of water into the
annular space.
From the bore exit point the pipeline installation
proceeded using the open trench
method. A milling cutter had already excavated
a 1.3 m deep trench up to the point
where another method was needed.
All participants were impressed with the
performance of the Beermann bore team.
According to the company motto
‘All lights set to green’, this proved to
be an environmentally sound and economical
project.
HDD
January 2012 - Trenchless International
A remote challenge
The first challenge faced by boring contractor
Beermann was the drilling site for
the project, which was situated on the high
plateau, 5 km from the nearest village. The
forest lane which led to the site was only just
accessible over the final 300 m, providing a
challenge for the contractor when transporting
the boring equipment and truck safely to
the jobsite. It took a whole working day to
complete the jobsite setup.
Water to mix the drilling fluid for the bore
was extracted from a small river known as
the Wipper, which was 6 km away.
The gas pipe ran above ground in an
area of steep slope with a gradient of
78 per cent, and needed to be replaced
by a parallel underground bore over a total
length of approximately 150 m. The distance
between the HDD rig and the start
of the slope was approximately 70 m.
This made an entrance angle of about
42 per cent necessary to be able to meet
with precision the planned bore exit point,
which was at the foot of the steep slope at
the end of the continuous straight line bore.
The ground conditions on the bore path
comprised layers of both weathered and
very solid limestone rock – up to soil classification
seven. The pilot bore had to
be prepared taking into account these
ground conditions.
Disposal of the drilling fluid.
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HDD
January 2012 - Trenchless International
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Spillway in order to relieve pressure on the
levee system and protect Baton Rouge and
New Orleans from major flooding. The Corps
did just that in May, releasing roughly 52 per
cent of the Mississippi River flow and leaving
ten per cent of Louisiana flooded, primarily in
the Atchafalaya Basin.
HDD
January 2012 - Trenchless International
Drilling in the heart
of Cajun country
Michels Directional Crossings successfully completed a complex, highly publicised horizontal
directional drilling crossing underneath the Atchafalaya River and the accompanying levee system
in central Louisiana, US.
The nearly one-mile Atchafalaya drill
was one of the last of a total of 15 horizontal
directional drilling (HDD) installations
that Michels ultimately completed on the
Acadian Haynesville Extension Project, a
270 mile natural gas pipeline that originates
in the Haynesville Shale in Red
River Parish, Louisiana, and terminates near
Donaldsonville, Louisiana.
The Haynesville Extension Project will
expand the existing Acadian Gas Pipeline
System, which is owned by Acadian Gas
LLC, a jointly-owned subsidiary of Enterprise
Products Partners L.P. and Duncan Energy
Partners L.P. The project will increase market
share for existing customers, connect
the service to new markets, and add more
than 200 MMcf/d of new customers along
the route.
Michels Directional Crossings completed
the Atchafalaya River drill for Michels
Pipeline Construction, which was the prime
contractor for spreads 3 and 4 of the
Acadian Haynesville Extension Project.
Michels Directional Crossings completed
a total of seven drills for Michels Pipeline
Construction and a total of ten drills for
Willbros Group, Inc., the prime contractor
for spreads 1 and 2.
Careful crossing
Crossing the Atchafalaya River was of
extreme importance as the river is classified
as a navigable channel of the Mississippi
River and has been a significant project
of the US Army Corps of Engineers for
over a century. As a primary industrial
shipping channel and the cultural heart of
Cajun Country, maintaining the integrity of
Atchafalaya, the levee system and the surrounding
environment has been a primary
issue for the Corps.
Because of this, any utility lines designed
for crossing the waterway and levee system
must undergo significant planning. Any
state-of-the-art equipment and methods
must be submitted to and approved by the
Corps of Engineers.
If the Mississippi River were allowed to flow
freely, the Atchafalaya would not be merely a
distributary of the Mississippi – it would be
the Mississippi itself. Instead, the Atchafalaya
provides an important alternate path to the
While working underneath
the watchful eye of the
Corps of Engineers, it did
not take much more than
a week for the two sides
to meet 104 ft below the
riverbed.
Gulf of Mexico while the current arrangement
of dams and spillways allows the Mississippi
to feed Baton Rouge and New Orleans.
The Atchafalaya Basin also plays an
important role in protecting those cities – the
Corps of Engineers can open the Morganza
A difficult challenge overcome
The controversial opening delayed the
Atchafalaya installation and put the project
on an extremely tight timeline. This made an
already difficult challenge – previous attempts
to drill and place utility lines underneath the
Atchafalaya have encountered failures due
mostly to difficulty with hole stability in the
sandy, silty soils – even more difficult.
With that setting as the backdrop and
evidence of the past failed HDD attempts
visible in the form of pipe bridges spanning
over the river, Michels began work in mid-
July using Corps-approved technology and
methods, which included pilot hole intersect
technology and annular pressure monitoring
through sensitive zones designated
beneath the levee areas on either side of the
Atchafalaya. While working underneath the
watchful eye of the Corps of Engineers, it
did not take much more than a week for the
two sides to meet 104 ft below the riverbed.
From there, Michels’ vast experience with
the conditions helped the project team hold
the hole open during larger reaming passes
which is where others had failed.
“People ask me, ‘What’s the difference
between you guys and them?’” Michels
Project Manager Larry Shilman said. “You
don't want it to come off the wrong way, but
it’s our people. It’s our experience. We’ve
seen this stuff before and we know how to
deal with it.”
The 36 inch diameter Atchafalaya drill
ultimately spanned 4,993 ft and was one
of four drills Michels Directional Crossings
completed on spread 4. Michels completed
one drill on spread 3 – a 42 inch crossing
– and nine more 42 inch crossings on
spreads 1 and 2. Michels completed one
other 36 inch crossing on spread 1.
While the Atchafalaya drill was the most
technically difficult of the 15 drills, Michels
broke the one-mile mark on two other
occasions: once in Kingston, Louisiana,
while drilling under the Kansas City Railroad
(5,325 ft), and once in Boyce, Louisiana,
while bypassing the Boise Cascade (5,340
ft). All told, Michels’ 15 HDD installations
spanned more than 10.2 miles.
The Acadian Haynesville Extension
Project was completed this fall.
American Augers Rapid Setup procedure
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• inserting pins at 2 different angles to
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HDD
January 2012 - Trenchless International
54
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55

No-Dig Down Under 2011
The National ASTT Conference and Exhibition was held with great success in Brisbane from
3–6 October. The event attracted over 1,000 participants and was one of the largest trenchless
exhibitions ever hosted in the Southern Hemisphere.
ISTT news
January 2012 - Trenchless International
Calling for papers in Colombia
The Second Colombian and First Andean and Central American Congress and Exhibition of No-Dig Technologies and
Underground Infrastructure 2012, to be held from 17–18 May in Cartagena de Indias, Colombia, is calling for abstracts.
The Colombian Institute of Subterranean Infrastructure Technologies and Techniques will be accepting abstracts for its
conference and exhibition. This year the theme is directed at continuing to learn how to construct, rebuild, rehabilitate, repair and
renovate the Colombian Andean and Central American underground infrastructure using trenchless and subterranean technology.
Prospective authors are invited to submit a 300 word abstract outlining the scope of their paper and principal points of the
benefits to underground infrastructure and trenchless industry.
Abstracts should match the conference theme and are of interest to the program committee. Topics include:
• Asset management • Trenchless research and development • Cutting-edge advancements
• Underground infrastructure advancement • Environmental issues
• Project planning and delivery
• Construction project management • Industry issues
The deadline for submission is 30 January 2012.
Abstracts must be submitted electronically to dir.ejecutiva@ictis.org
Moscow calls for papers
The 2012 No-Dig Moscow, to be held from 5–8 June 2012 in Russia, is encouraging potential authors to prepare and
submit presentations for the conference.
The conference, which is organised by the Russian Society for Trenchless Technology and SIBICO International, with
support from the German Society for Trenchless Technology and the ISTT, is aimed to showcase the latest in products and technology
and establish new networks.
Papers submitted should tie into one of the three main streams of the conference:
• Horizontal directional drilling
• Rehabilitation and repair
• Tunnelling
Papers are accepted only in electronic form to nodig@sibico.com or Konovalova@sibico.com
The deadline for submission is 1 February 2012.
ITTC brings together industry in China
The 2012 16th International Trenchless Technology Conference (ITTC), to be held from 20–22 April at the Zhengzhou
International Conference and Exhibition Hall will be hosted by the China Society for Trenchless Technology (CSTT),
American Society of Civil Engineers, Pipeline Division (ASCE), and the Centre of Underground Infrastructure Research and
Education, University of Texas, Arlington (CUIRE).
The rapid development of China’s economy and urbanisation brings both a great opportunity as well as a challenge to the
domestic trenchless industry. In the past year the CSTT said it has witnessed such a large improvement in Trenchless Technology
in its country through various applications in municipal, gas, communication and petroleum that they see an increase in demand for
technical exchange.
The conference will cover all areas of Trenchless Technology and aim to provide production, academic and research communities
a platform for resource integration. The conference will also promote and help to boost the development of the trenchless industry.
The large exhibition hall will showcase the latest in technological development from large pipe and equipment manufactures.
Industry experts from around the world are invited to attend this event.
For more information visit: www.cstt.org/2012/en
Of the visitors to No-Dig Down Under
2011, over 400 were firs-timers to the event.
Over the course of four days, delegates
attended training sessions led by worldclass
trenchless experts, including ISTT
Chairman Dr Samuel Ariaratnam and Dr
Tom Iseley, professor at the IUPUI-Purdue
School of Engineering & Technology,
Indiana. The conference program consisted
of presentations from international and local
speakers; as well as the Asset Management
Forum and the Keynote Breakfast Session
open to the public and featuring a speaker
from NBN Co Ltd.
Featured sessions included relining, HDD,
condition assessment, tunnelling, rehabilitation,
new technologies and standards,
and underground solutions as well as two
super panels on rehabilitation and installation.
Throughout the event, delegates had
the opportunity to view an impressive array
of the latest technology in the exhibition hall.
The Platinum sponsor of the event was
Interflow; Gold sponsor was Vermeer;
Silver sponsors were Kembla Watertech,
Insituform Pacific and Zueblin Australia;
Bronze sponsors were Bothar Boring and
HOBAS; and sponsors were Murphy Pipe
and Civil and Bettergrow.
Trenchless people
This year’s conference drew delegates
from Australia and New Zealand as well
as Italy, Switzerland, US, Netherlands,
Thailand, Germany, China, UK, Singapore
and Papua New Guinea.
Super Panels
Upon registering for the conference, delegates
were offered the opportunity to submit
questions on rehabilitation and installation to
shape the Super Panel discussions.
The Super Panel on Installation was
moderated by trenchless expert Dr Sam
Ariaratnam, who posed delegate-submitted
questions to expert panellists Dave Cook of
MWH, Drillit International’s Stuart Harrison
and Vermeer Sales and Service’s Simon
Coles. The Super Panel on Rehabilitation was
moderated by Queensland Urban Utilities
Project Director Kathryn Turner, with a panel
comprised of conference speakers Dr Tom
Iseley, Interflow’s Ian Bateman, Sastti JV’s
Lance Horlyck and Kembla Watertech’s
Chris Frangos.
Asset Management Forum
The keynote address of the Asset
Management Forum was delivered by the
Institute of Public Works’ Leon Patterson,
who then joined a panel consisting of
QUU’s Shane Makin and the National Utility
Locating Contracting Association’s (NULC
A) Andy McLean. The audience took the
opportunity to question the panel on contemporary
issues facing Australian assets.
Keynote Breakfast Session,
National Broadband Network
The final keynote address for the conference,
held in the Exhibition Hall and
open to the public, was incredibly well
attended. The session had been noted by
many attendees as one of the highlights of
the conference, outlining one of the new,
exciting ways Trenchless Technology is
expanding in Australia. National Broadband
Network (NBN) Co Ltd State Manager Rob
Seal outlined the aims, achievements, and
future plans for the project, stating “We only
want to dig if we have to.”
Trenchless training
Attendees were given the opportunity
to take advantage of specialised trenchless
training in addition to the conference
program. Dr Sam led a well-attended training
module on HDD, which provided an
introduction to HDD applications; discussion
on equipment involved in the process;
recommended planning criteria; drilling
fluid applications; and demonstrated environmental
benefits, to assist and facilitate
successful HDD installations.
The second course was on Structural
Water Main Renewal and hosted by Dr
Iseley. Attendees benefited from Dr Iseley’s
incredible experience in the sector.
Bringing the industry together
The social program for No-Dig Down
Under 2011 kicked off with a very European
flavour, with HOBAS hosting the Beer
and Bratwurst-themed Exhibition Opening.
ASTT Vice Chairman and Queensland
Councillor Andy Krumins officially welcomed
attendees to the exhibition opening.
A friendly and lively atmosphere was created
with German barmaids ensuring all
delegates’ beer mugs were kept topped.
The Vermeer-sponsored cruise along
the Brisbane River was an unforgettable
night of revelry. As delegates boarded
the ship, they could be overheard joking
that a cruise was the best way to
keep rowdy trenchless folk from causing
chaos in the Brisbane city centre.
ISTT news
January 2012 - Trenchless International
56
57

made their way to the elegant Victoria
Golf Complex for a night of sophistication.
The event was hosted by ex-AFL player
Richard Champion, whose insight into all
things AFL was regaled in a very entertaining
way. Trenchless Australasia Editor
Kate Pemberton welcomed the guests and
introduced Geoff Weaver from Interflow,
who congratulated the trenchless industry
for its vast accomplishments over the past
decade. The guest speaker of the night,
Kerry O’Keefe, was very well received as
he shared his views on cricket, Australia
and life.
Future events in Australia
Get internationally
recognised with 2012
ISTT No-Dig Awards
Next year Trenchless Live 2012 will be held at the
Royal Melbourne Showgrounds 23–24 October. Booths for this
demonstration show are selling fast.
In 2013 the ISTT will co-host No-Dig Down Under 2013, the ASTT’s
National Conference and Exhibition to be held at the Sydney
Convention Centre. Sponsorship opportunities are now available.
Contact Tim Thompson on +61 3 9248 5100 or email
tthompson@gs-press.com.au for more information.
Applications are being accepted for the Annual No-Dig Awards for 2012, presented at the International
No-Dig 2012, to be held from 12–14 November in Sao Paulo, Brazil. Applications close 31 August 2012.
ISTT NEWS
January 2012 - Trenchless International
The boat was festively decked out in
Hawaiian-themed decorations, with attendees
rising to the occasion by donning
Hawaiian shirts, festively-coloured leis, and
grass skirts. The prestigious Gala Dinner and
Awards Evening, sponsored by Interflow,
was the most anticipated event of the show.
Delegates, exhibitors and their partners
The EXPERTS of Poland
Award submissions are still open for the 2012 No-Dig Poland conference, to be held from 17–19 April at
the Uroczysko Hotel in Kielce, located in the centre of Poland at the base of the Saint Cross Mountains.
The conference is organised with the
help of the Polish Foundation for Trenchless
Technology (PFTT), as well as the ISTT,
and will feature both technical sessions with
papers from various trenchless and industry
experts, and an exhibition space for visitors.
The conference will also feature live demonstrations.
Winners of EXPERT statuettes for the best
trenchless projects.
The Exhibition hall.
This year the conference will have many
themes covering the trenchless industry making
it a great learning experience including:
• Trenchless installation of underground
pipelines: microtunnelling, pipe jacking
and others
• Trenchless rehabilitation of underground
pipelines: repair, sealing, rehabilitation,
replacement
• Pipes used in trenchless technologies
• Materials used for repair and rehabilitation
of pipelines as well as underground infrastructure
building
• Devices used in trenchless technologies
• Devices used for cleaning and diagnostics
of underground pipelines
• Condition of underground pipelines
(assessment and management)
• Planning and designing of trenchless
installation as well as rehabilitation of
underground pipelines
• Large-scale tunnelling.
If you are interested in submitting a
paper please contact Maria Gierczak at
maria.gierczak@gmail.com
An awarding experience
The EXPERT 2012 statuettes will be
awarded to innovative trenchless companies,
www.trenchlesslive.com
For more information visit http://www.nodigpoland.tu.kielce.pl/eng
recognising products, new installation and
rehabilitation projects.
Both companies and institutions are invited
to take part in the competition. Interested
companies can submit their products and
technology for the following categories:
• Trenchless installation in 2010–11
• Trenchless rehabilitation in 2010–11
• Innovative solutions in the range of
devices, products or technology used for
trenchless installation or refurbishment,
as well as for diagnostics of underground
networks in 2010–11.
Please note that:
• The composition of the Competition
Committee will be made of the
Honorary Scientific and Organising
Committee Members
• The submissions have to be sent by the
company or institution
• Additional materials may be attached to
the final submission.
The deadline for submissions is
15 February 2012. Submission forms
should be sent to Justyna Lisowsk at
justyna.lisowsk@gmail.com
The conferences’ official language will be
English and Polish with simultaneous translation
to accommodate international visitors.
Applications are for work completed
in the 2011–2012 year and must have
the written endorsement of the Affiliated
Society where the application is submitted.
Applications submitted by non-members
and by ISTT members who are not members
of an Affiliated Society are exempt from this
requirement.
Applications must be in English, and
should be prepared with the below criteria in
mind with a maximum of 1,000 words supported
by suitable illustrations in Microsoft
Word. Illustrations should be inserted to the
text (one file per entry).
There are four categories eligible to receive
awards as shown below. Awards may not be
made in all categories in a given year.
• Academic research or training aid/course
• Trenchless project completed
• New machine, tool, material, system or
technique introduced
• Student or young professional paper –
Members regularly enrolled in college or
university, or spending at least half their
time on academic coursework
The aim of ISTT is to promote the science
and practice of Trenchless Technology, and
the awards are a way to raise the profile and
status of the society and its award winners.
All award winners will be:
• Recognised at the conference and presented
an award,
• Featured in an article in Trenchless
International,
• Added to the published list of ISTT award
winner role of honour posted on the ISTT
website, and
• Authorised to use the ISTT logo on promotional
material related to the award
activity or recipients
In addition, the winner may be afforded
an opportunity to make a brief presentation
on the activity that received the award at the
conference, time and schedule permitting.
The student award winner will receive a
small cash award and limited financial travel
assistance to attend the conference.
Criteria for selection of awards are as
follows:
• Does the entry make a contribution to the
advancement of Trenchless Technology
worldwide?
• Does the entry contribute to protecting
the environment and/or reduce
social costs?
• Are the above benefits clear from
the entry?
• Is the entry innovative, ingenious, elegant
or novel?
• Is the entry commercially and economically
practicable?
• Will the award make an impact with the
media, decision-makers and the general
public?
• Will the award impress ISTT members?
• Has the entry been well-explained
and presented?
Applicants for the categories of Trenchless
Project and New Machines should demonstrate
a practical use or development of
trenchless systems or equipment for the
installation or rehabilitation of underground
utility networks. For example, entries may
address achievements in:
• Improved economy and competitiveness
of trenchless installations
• Length and speed of drive for installation,
replacement or renovation
• Accuracy or size of installation
• Materials used
• Ground conditions successfully dealt with
Improved acceptability for clients, operators
and/or environment
• Underground detection, recording and
mapping of obstacles, both natural and
manmade
• Health and safety of employees and the
general public
• Matters related to training in the field of
trenchless work
• Research into any of the topics related to
working on underground utilities.
All entries should be submitted
to the ISTT at info@istt.com
This e-mail address is being
protected from spambots and
JavaScript must be enabled
to view it.
ISTT news
January 2012 - Trenchless International
58
59

ISTT ESC PROFILE
January 2012 - Trenchless International
5 minutes with Jeff Pace
Trenchless International introduces you to the members of the ISTT Executive Sub-Committee. Here
we speak to Jeff Pace from the Australasian Society for Trenchless Technology (ASTT), who has been
involved in the trenchless industry for over two decades.
1. How did you first become
involved in the trenchless industry?
I became involved in the trenchless
industry in January 1991 when Menno
Henneveld asked me to establish a society
for Trenchless Technology – this took a few
months to do as I had never heard of the
Dr Sam Ariaratnam and Jeff Pace.
term trenchless nor had any concept of
what it was in my engineering life.
2. Which organisation are you
from and how long have you been
on the Executive Sub-Committee?
I am from the ASTT and was appointed to
the ESC November 2010, at the Singapore
conference. Over the past six years, I have
also represented Menno Henneveld at some
of the past ESC meetings.
3. What has been the most
memorable project you worked on?
In mid to late 1991, I was involved in a
microtunnelling project in Perth, located in
Western Australia, as a part of the infill sewerage
program for a reticulation area called
Cannington. This work involved the installation
of main sewers using an Okumura
Super Mini microtunnelling machine that the
then water authority owned.
The use of this machine enabled the
sewer to be laid without any open cut in a
particularly sensitive area that had remembrance
trees along its pipe route. Without
this trenchless technique being adopted,
the trees would have been destroyed and
no doubt there would have been outcry from
the community.
4. What do you see as the most
important role and responsibility
of the ISTT?
The ISTT is made up of a family of societies
and associations from all over the
world. To me the most important thing
the ISTT can do is to provide support to
all these units by way of ensuring that the
same trenchless message is preached
to all. Giving technical assistance to the
smaller societies is also an important issue.
5. How do industry initiatives such
as conferences and publications
help you in promoting Trenchless
Technology?
The ASTT has been very fortunate in
this area. To date, we have hosted two
International No-Digs and the third scheduled
for 2013. By holding events like these,
those who attend get to see, and in some
cases touch, the latest technologies available,
expand their knowledge on industry
best practices as well as their network of
key people – both nationally and globally.
The ASTT magazine, Trenchless
Australasia, is also a fantastic product that
reaches some 3,000 key people in our
industry every three months with the latest
news and information on products, projects
and people.
6. What are some of the main
challenges your country is facing
with Trenchless Technology and
how do you think these can be
overcome?
One of the biggest challenges we have
is trying to ensure that trenchless operators,
as a minimum, have a Certificate 3
in Trenchless Technology. For this to be
uniform across Australasia, we need all the
large, mainly utility client organisations, to
insist on this requirement. If they did then
the chances of poor practices would be
significantly reduced, which would save
everyone a lot of time and money.
Visit
www.istt.com
for further
information.
The ISTT is the umbrella organisation for trenchless technologists in over
30 countries of the world. In 30 countries, groups of trenchless technologists
have their own national groups that are affiliated, while the remainder are registered
directly with the ISTT.
Trenchless Technology covers the repair, maintenance, upgrade and new installation
of underground utility services using equipment and techniques which
avoid or considerably reduce the need for excavation. The ISTT promotes
research, training and the more extensive use of Trenchless Technology through
publications, co-operation with other NGOs, an annual international conference
and an interactive website.
Trenchless Technology is recognised as an environmentally sustainable technology
and is particularly suited, for use in densely populated urban areas by
reducing disruption to peoples daily lives, social costs (traffic congestion, damage
to road surfaces and buildings, air quality), noise and dust. Trenchless
technologies also have a considerably reduced carbon footprint compared to
trenching in most situations.
Contacts and addresses of Affiliated Societies
Austrian Association for Trenchless
Technology (AATT)
Osterreichische Vereinigung
fur grabenloses Bauen und
Instandhalten von Leitungen (OGL)
Schubertring 14A–1015 Wien
AUSTRIA
Tel: +43 1 513 15 88/26
Fax: +43 1 513 15 88/25
Email: boccioli@oegl.at
www.oegl.at
Chairman: Ing. Norbert Böhm
Member Secretary: Ute Boccioli
Int. Representative: Ute Boccioli
(boccioli@oegl.at)
Brazil Association for Trenchless
Technology (ABRATT)
Al. Olga, 422 cj. 126
Barra Funda – CEP 0155-040
Sao Paulo - SP
BRAZIL
Tel: +55 (11) 3822 2084
Fax: +55 (11) 3822 2084
Email: secretaria@abratt.org.br
www.abratt.org.br
Chairman: Paulo Dequech
Member Secretary: Fábio Tesarotto
Int. Representative: Sergio Palazzo
(Fax: +55 (11) 3822 2084)
Australasian Society for Trenchless
Technology (ASTT)
18 Frinton Place
Greenwood
WA 6024
AUSTRALIA
Tel: +61 (0)8 9420 2826
Fax: +61 (0)8 9343 5420
Email: jeffpace@astt.com.au
www.astt.com.au
Chairman: Trevor Gosatti
Member Secretary: Jeff Pace
Int. Representative: Jeff Pace
(jeffpace@astt.com.au)
Bulgarian Association for Trenchless
Technology (BATT)
Koprinka Lake Village
Kazanlak
6100
BULGARIA
Tel: +359 2 4901381
Fax: +359 431 63776
Email: info@batt-bg.org
www.batt-bg.org
Chairman: Stefan Zhelyazkov
Member Secretary: Pavel Gruev
China Hong Kong Society for Trenchless
Technology (CHKSTT)
10/F Hing Lung Commercial Building
68–74 Bonham Strand East
HONG KONG
Fax: +852 81487764
Email: info@chkstt.org
www.chkstt.org
Chairman: Jon Boon
(jon.boon@soundprint.com)
Int. Representative and ESC Member:
Derek Choi (derekchoi@balama.com)
Society Secretaries: Summer Lee
and Tony Lau
Colombia Institute for Subterranean
Infrastructure Technologies and
Techniques (CISTT)
Calle 70 A No. 20-36
Bogotá
COLOMBIA
Tel: +571 211 05 97
Fax: +571 210 49 85
Email: juan.gutierrez@epm.com.co
Chairman: Luis Guillermo Maldonado F.
Int.Representative:
Juan Carlos Gutierrez M.
Society Secretary: Patricia Gómez B.
China Society of Geology – Trenchless
Technology Committee (CSTT)
Room 151, 26 Baiwanzhuang Street
Xicheng District, Beijing 100037, P R China
Tel: +86-10-6899 2605
Fax: +86-10-6899 2605
www.cstt.org
Chairman: Wand Da
Executive Vice Chairman: Yan Chunwen,
(yan64843889@126.com)
Secretary General: Zhu Wenjian,
(zhwji@cstt.org)
Membership Secretary: Jin Huiying
the international society for trenchless technology January 2012 - Trenchless International
About ISTT/Membership
60
61

January 2012 - Trenchless International
China Taipei Society for Trenchless
Technology (CTSTT)
Rom 3150, 3F., No.3, Beiping W. Rd.,
Zhongzheng District,
Taipei
TAIWAN
Tel: +886 2 2312 0709
Fax: +886 2 2362 1268
Email: anitawu@mail.water.gov.tw
Chairman: Liao, Tsung-Shen
General Secretary: Su, Jin-Long
(steven@mail.water.gov.tw)
Membership Secretary: Lin-Min Chiu
(emily570319@hotmail.com)
Int. Representative: Prof. D.H Jlang
Czech Society for Trenchless Technology
(CzSTT)
Bezova 1658/1
147 14 Praha 4
CZECH REPUBLIC
Tel: +420 244 062 722
Fax: +420 244 062 722
Email: office@czstt.cz
www.czstt.cz
Chairman: Stanislav Drabek
(czstt@czn.cz)
Member Secretary: Dr Jiri Kubalek
(czstt@czn.cz)
Int. Representative: Karel Franczyk
Finnish Society for Trenchless Technology
(FiSTT)
Pl 493
00101 Helsinki
FINLAND
Tel: +358 10 409 5951
Fax: +358 10 332 6603
Email: mika.nevala@poyry.com
www.fistt.net
Chairman: Jari Kaukonen
(jari.kaukonen@fcg.fi)
Member Secretary: Mika Nevala
(mika.nevala@poyry.com)
French Society for Trenchless Technology
(FSTT)
4 rue des Beaumonts
F-94120 Fontenay Sous Bois
FRANCE
Tel: +33 1 53 99 90 20
Fax: +33 1 53 99 90 29
Email: fstt@fstt.org
www.fstt.org
Chairman: Patrice Dupont (President)
Int. Representative: Jean-Marie Joussin
(jeanmarie.joussin@hobas.com)
General Secretary: Christian Legaz
(christian.legaz-avr@wanadoo.fr)
Treasurer: Jérôme Aubry
(jaubry@chantiers-modernes.fr)
German Society for Trenchless
Technology (GSTT)
Messedamm 22
D-14055 Berlin
GERMANY
Tel: +49 30 3038 2143
Fax: +49 30 3038 2079
Email: beyer@gstt.de
www.gstt.de
Chairman: Prof. Dipl-Ing Jens Hoelterhoff
Member Secretary: Dr Klaus Beyer
Secretary: Dr Klaus Beyer
Int. Representative: Dr Klaus Beyer
No-Dig 2011: Dagmar Eichom
Italian Association of Trenchless
Technology (IATT)
Via Ruggero Fiore, 41
00136 Rome
ITALY
Tel: +39 06 39721997
Fax:+39 06 91254325
Email: iatt@iatt.info
www.iatt.it
Chairman: Paolo Trombetti
(paolo.trombetti@telecomitalia.it)
Member Secretary: Letizia Rinaldini
(iatt@iatt.it)
Int. Representative: Alessandro Olcese
(2005emanuele@alice.it)
Secretary: Feliciano Esposto
(esposto.feliciano@virgilio.it
Iberian Society for Trenchless
Technology (IbSTT)
C/ Josefa Valcarcel,
8 – 3a PTLA.
28027 Madrid
SPAIN
Tel: +34 91 418 23 44
Fax: +34 91 418 23 41
Email: ibstt@ibstt.org
www.ibstt.org
Chairman: Alfredo Avello
Member Secretary: Elena Zuniga Alcon
Int. Representative: Alfredo Avello
Japan Society for Trenchless
Technology (JSTT)
3rd Nishimura BLDG.
2-11-18 Tomioka
Koto-ku
TOKYO 135-0047
JAPAN
Tel: +81 3 5639 9970
Fax: +81 3 5639 9975
Email: office@jstt.jp
www.jstt.jp
Chairman: Mr Taigo Matsui
(office@jstt.jp)
Executive Secretary: Yoshihiko Nojiri
(nojiri@jstt.jp)
Member Secretary: Kyoko Kondo
(kondo@jstt.jp)
Lithuanian Association of Trenchless
Technology (LIATT)
V.Gerulaicio str. 1
LT-08200 Vilnius
Lithuania
Tel: +370 5 2622621
Fax: +370 5 2617507
Email: arturas.abromavicius@sweco.lt
www.lbta.eu
Chairman: Arturas Abromavicius (President)
Member Secretary: Arturas Abromavicius
Int. Representative: Arturas Abromavicius
Chairman of Council: Algirdas Budreckas
North American Society for Trenchless
Technology (NASTT)
1655 North Fort Myer Drive Ste 700
Arlington
Virginia 22209
USA
Tel: +1 703 351 5252 (US)
+1 613 424 3036 (Canada)
Fax: +1 613 424 3037
(also Membership)
Email: info@nastt.org
www.nastt.org
Chairman &
Int. Representative: George Ragula
Vice Chairman: Bob Westphal
Secretary: Ben Cote
Treasurer: Kaleel Rahaim
Executive Director: Mike Willmets
(mwillmets@nastt.org)
Assistant Executive Director:
Angela Ghosh
(aghosh@nastt.org)
Netherlands Society for Trenchless
Technology (NSTT)
Postbus 483
2700 AL Zoetermeer
THE NETHERLANDS
Tel: +31 (0)79 3252265
Fax: +31 (0)79 3252294
Email: info@nstt.nl
www.nstt.nl
Chairman: Theo Everaers
(mjceveraers@evenco.nl)
Secretary: Ingrid Meuwissen
(info@nstt.nl)
Int. Representative: Dr Wout Broere
(w.broere@tudelft.nl)
Polish Foundation for Trenchless
Technology (PFTT)
25-001 Kielce 1 skr. Poczt. 1453
POLAND
Tel: +48 41 3424 450 (600328459)
Email: akulicz@tu.kielce.pl
www.pftt.pl
Chairman: Andrzej Kuliczkowski
Vice Chairman: Benedykt Lipczynski
Member Secretary: Anna Parka
(parkaa@tu.kielce.pl.)
Int. Representative: Andrzej Kuliczkowski
Secretary: Agata Zwierzchowska
Russian Society for Trenchless Technology
(RSTT)
Moscow area, Odintsovskii region,
Marfino, 99, 143025,
RUSSIAN FEDERATION
Tel: +7 (495) 771 71 00
Fax: +7 (495) 771 71 00
Email: np-robt@mail.ru, robt@co.ru
www.robt.ru
Chairman: Stanislav Khramenkov
Member Secretary: Elena Gusenkova
Int. Representative: Andrey Sinitsyn
Southern African Society for Trenchless
Technology (SASTT)
PO Box 13048
Clubview
0014
South Africa
Tel: +27 (12) 567 4026
Fax: +27 (12) 567 4026
Email: director@sastt.org.za
www.sastt.org.za
Chairman: Andries Lötz
Honorary Director: Joop van Wamelen
Member Secretary: Joop van Wamelen
Scandinavian Society for Trenchless
Technology (SSTT)
Box 7072
S-174 07 Stockholm
Sweden
Tel: +46 8 522 122 90
Fax: + 46 8 522 122 02
E: lennart.berglund@stockholmvatten.se
www.sstt-skandinavien.com
Chairman: Magnar Sekse
(magnar.sekse@bergen.kommune.no)
Vice Chairman: Gerda Hald
(gh@ov.dk)
Secretary (SSTT): Lennart Berglund
(lennart.berglund@stockholmvatten.se)
Member Secretary (Danish):
Tina Juul Madsen (tjm@wtc.dk)
Member Secretary (Norweigan):
Odd Lieng (odd.lieng@rorsenter.no)
Member Secretary (Swedish): Kjell Frödin
(kjell@vretmaskin.se)
Singapore Society for Trenchless
Technology (SgSTT)
80 Toh Guan Road East
WaterHub
Singapore 608575
Tel: +65 9712 4054
E-Mail: imail@sgstt.org.sg
www.sgstt.org.sg
Chairman: Dennis Kong
Vice Chairman: Lau Yew Hoong
Member Secretary: Sean Lim
Turkish Society for Infrastructure and
Trenchless Technology
Altyapi ve Kazisiz Teknolojiler Dernegi
(AKATED)
Aksaray Mah. Abdullah Cavus Sok.
No:17/2 Fatih Istanbul
TURKEY
Tel: +90 212 632 8531
Fax: +90 212 530 1510
E-mail: info@akated.com
www.akated.com
Chairman: Yasin Torun
ytorun@akated.com
Vice Chairman: Ahmet Gulec
agulec@akated.com
Ukraine Association for Modern
Trenchless Technology (UAMTT)
9A R.Karmen Str.
Odessa 65044
UKRAINE
Tel: (380 482) 356305
Fax: (380 482) 356305
Email: no_dig@blacksea.net.ua
www.no-dig.odessa.ua
Chairman: Victor Prokopchuk
ESC Member: Olga Martynyuk
(Olga_marty@ukr.net)
United Kingdom Society for Trenchless
Technology (UKSTT)
38 Holly Walk
Leamington Spa
Warwickshire
CV32 4LY
UK
Tel: +44 (0)1926 330 935
Fax: +44 (0)1926 330 935
Email: admin@ukstt.org.uk
www.ukstt.org.uk
Chairman: Colin Tickle
(admin@ukstt.org.uk)
(Tel: 01926 330 935)
Member Secretary: Val Chamberlain
(admin@ukstt.org.uk)
(Tel: 01926 330 935)
Upcoming Events
UCT 2012
24–26 January 2012
Henry B. Gonzalez Convention Centre,
San Antonio, Texas, US
www.uctonline.com
China International Municipal Equipment
Expo & China International Water Supply
& Sewerage Pipeline Exhibition 2012
9-11 March 2012
China Import & Export Fair
Pazhou Complex
www.china-mete.com/ps/
Trenchless South East Asia
March 2013, Bangkok
www.nodigevents.com
NASTT No-Dig 2012
11–15 March 2012
Nashville, Tennessee, US
www.nodigshow.com
No-Dig Poland 2012
16–19 April 2012, The Uroczysko Hotel,
Kielce, Poland
www.nodigpoland.tu.kielce.pl/
Second Colombian and First Andean
and Central American Congress and
Exhibition of No-Dig Technology
17–18 May 2012
Cartagena de Indias, Colombia
www.ictis.org
Underground Infrastructure Research
Conference and Trenchless Technology
Road Show
5–6 June 2012, Niagara Falls, Canada
Scotiabank Convention Centre
www.civil.uwaterloo.ca/catt/
TrenchlessRoadShow2012/roadshow.htm
No-Dig Moscow
5-8 June 2012, Moscow Russia
Trenchless Engineering 2012
13–15 June 2012, Zawiercie, Poland
www.konferencje.inzynieria.com/
inzynieria/en
Trenchless Asia 2012
2–4 July 2012, Singapore
www.trenchlessasia.com
No-Dig Live 2012
2–4 October 2012 Coventry, UK
www.nodiglive.co.uk
2012 International No-Dig Bratzil
12–14 November 2012 Sao Paulo Brazil
www.acquacon.com.br/nodig2012/en
2013 International No-Dig Sydney
1–4 September 2013 Sydney, Australia
www.nodigdownunder.com
Event not listed? Contact Sarah Paul at spaul@gs-press.com
to make sure your event is listed in the next edition.
January 2012 - Trenchless International
62
63

ADVERTISERS’ INDEX
ABS Trenchless GmbH 46
American Augers 55
Aquapipe 35
Barbco Inc. 16
Brandenburger Liner GmbH
& Co. KG 37
Digital Control, Inc. 11
Hanlyma 44
Herrenknecht
IFC
Horizontal Technology, Inc 3
Hunting Trenchless 53
Infrastructure Marketing Solutions 19
I.S.T. GmbH 40
IVIS Inc. 45
KRE Engineering Services Pty Ltd 33
Mears Group, Inc. 36
Michels Corp 12
NASTT's No-Dig 2012 show 25
No-Dig Events
IBC
No-Dig Moscow 15
Per Aarsleff A/S 5
Prime Horizontal 7
Saertex Multicom GmbH 43
Scandinavian No Dig Centre 26
Sekisui SPR Europe GmbH 42
Tracto-Technik 14
Trenchless International
Jobs Online 23
Trenchless Live 2012 27
Trenchless South East Asia 17
Trenchless International
Online Advertising 13
UCT 2012 31
Umwelttechnik Franz
Janssen GmbH 51
Vermeer
OBC
Ward & Burke Construction Ltd 29
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editorial schedule
April 2012 July 2012 October 2012 January 2013
Regional Focus Europe Brazil North America
Industry Focus
Asset Management
Inspection & Condition
Assessment
Risk Management
Environment & Sustainability
January July 2010 2012 - - Trenchless International
Major Features Pipe & Conduit Laterals Microtunnelling & Pipe Jacking
Pipe Bursting
CIPP
HDD, Relining Options
Utility Close-Up Oil & Gas Water Electricity & Communications Wastewater
Technology
Products and
Equipment
Extra
Circulation
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Robotics
Drill Bits
TBA
Manholes Resins Utility Location CCTV
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systems
TBA
Drilling Equipment
2012 International No-Dig
Sao Paulo
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UCT
NASTT No-Dig
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DEADLINE 16 March 2012 8 June 2012 7 September 2012 16 November 2012
64 64

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