tunnel's - Trenchless International
tunnel's - Trenchless International tunnel's - Trenchless International
Weighing in on the best cure Speed of installation was the focus of a project rehabilitating mixed water channels in the Rethmar district of Sehnde, Lower Saxony. The damaged pipelines lay under the town’s main artery, the busy B65 motorway. Rehabilitation of the pipe via open construction methods would have resulted in considerable traffic re-routing. Proponent Sehnde Municipal Utilities issued an invitation to tender that specified rehabilitation via trenchless relining. The job required renewal of 911 m of mixed water channel in the dimensions of DN250 to DN1,200. Rohrsanierung Jensen from Bordesholm was awarded the tender due to the company’s extensive experience in pipe rehabilitation. In May 2012, the channel was rehabilitated in ten sections under the direction of Andreas Josef. Challenges coming thick and fast The biggest challenge of the project was rehabilitating a section of DN1,200 circular profile pipe, measuring 205 m. This long section ran directly under the motorway, which meant multiple installation pits were out of the question and the entire section would have to be relined from a single installation point. Based on the existing pipeline damage, structural engineers calculated the composite wall thickness required as 12.1 mm. In order to install a pipe liner with this wall thickness in a reasonable time, it was initially decided the only viable curing method could be ‘combination curing’, which works by using a combination of UV light curing and thermal curing. However, the disadvantage of this technology is the time-consuming process; in order to prevent premature curing of the SEE US AT Reline Europe details a project that took place in Sehnde, Germany, in which Rohrsanierung Jensen installed a 205 m, 20 tonne Alphaliner1500 with UV curing, completing one of the heaviest cured pipe installations to-date in record time. 79 BOOTH NO. resin, the liner material must be transported and stored in cool containers. Additionally, on the construction site a considerable amount of additional work is required compared with pure UV light curing. Rohrsanierung Jensen Managing Director Stefan Jensen decided on a different strategy, deciding to use an Alphaliner1500, a newly developed GFRP liner from manufacturer RELINEEUROPE. This pipe liner is characterised by a highly developed, high level transparency glass resin complex. In combination with UV curing technology, Alphaliner1500 with wall thicknesses exceeding 10 mm can be quickly cured using pure light. The liner arrives on-site On 2 May, the 205 m liner was delivered to the construction site at 10 am. The transport case, which measured 6 m long and 2.5 m in height and width, weighed almost 20 tonnes. A heavy-duty crane unloaded the liner from the lorry to the manhole. Four hours later, the pipe liner was inserted into the channel on a sliding foil with the help of a conveyor belt, and the packers were positioned on both ends of the liner. Mr Jensen said “For the curing process, we used the light source that RELINEEUROPE developed especially for rehabilitating large profiles, which has a curing performance of 12 x 1,000 watts.” Mr Jensen invested in this highperformance curing technology back in 2011. He explains that the technology has already proven itself on many construction sites when it comes to quickly curing liners with large wall thicknesses. Speedy completion The liner had been positioned and calibrated using compressed air within one hour, allowing a team specialised in the installation of large liners to start the curing process at 3 pm. A curing speed of around 50 cm per minute was achieved with the powerful UV light source. The curing process was completed at 10 pm after around seven hours of work. At 3 am, the specialists had completed the milling out of the supply lines and the rehabilitation of the connections. In the morning, commuters driving to work were able to go through Sehnde without experiencing any traffic congestion. Sehnde Municipal Utilities’ Claudia Pechtheiden–Meier, who monitored the project as the contracting body’s construction manager, was also satisfied. Rohrsanierung Jensen completed the project at a record speed and well within the allocated time frame. REL Anz_185x84_en.fh11 11.09.2012 15:40 Uhr Seite 1 The pipe rehabilitation team uses a conveyor belt for feeding into the manhole. “This globally unique curing performance enables a considerably faster and more reliable installation of pipe liners, even when rehabilitating large cross-sections with high static loads," says Mr Jensen. C M Y CM MY CY CMY K Mr Jensen said the benefits of light curing with the Alphaliner1500, are “therefore transferrable on a one-to-one basis for the rehabilitation of large profiles.” CIPP CIPP October 2012 - Trenchless International The Alphaliner1500, which weighs 20 tonnes, during the loading process at RELINEEUROPE's premises. Perfect System: Light-transparent liner material and high performance UV-technology • Diameter DN150 – DN1300 (circular, egg-shaped, special sections) with uniquely defined wearing layer for optimum endurance • Curing with innovative new UV-curing technology – with controlled stable UV radiation power • Alphaliner 1500 with UV-light transparent liner material – for quick and reliable curing of high wall thicknesses over 10 mm With its Alphaliner users RELINEEUROPE uses the unique RE-TQM Total Quality Management System as an integrated QM system with defined quality guidelines from the raw material to the completed liner installation, in order to guarantee the highest level of quality in all cases. More about us : : www.relineeurope.com RELINEEUROPE AG : : Große Ahlmühle 31 : : D-76865 Rohrbach : : Fon +49 63 49 93 934-0 : : info@relineeurope.com October 2012 - Trenchless International 34 Probedruck 35
The ASTT's 2011 No-Dig Exhibition Hall. SEE US AT 93 BOOTH NO. Abstract submission categories Successful applicants will be requested to make a 20 minute oral presentation during the free paper session of the scientific program. The 20 minute presentation will be followed by 10 minutes of questions and answers (total of 30 minutes). Delegates at the ASTT's 2011 No-Dig enjoying the evening River Cruise. Sydney is calling The ISTT has opened the Call for Papers for No-Dig 2013, which is being held from 1–4 September, in Sydney, Australia. Conditions It is a condition of submission that the presenting author of the abstract must pay to register for the conference by 5 July 2013. Registration payments not received by this date will result in presenters being withdrawn from the program. Please also note that accepted authors will be required to submit a full paper (maximum eight pages) for publication. All abstracts and full papers will be published for distribution to delegates at the conference and may subsequently be published separately. Authors will be required to assign copyright to the ISTT/ASTT. To submit Abstracts can be submitted via the event website www.nodigdownunder/speakers or email conference@gs-press.com.au Please call Great Southern Press on +61 3 9248 5178 for further information. Deadlines 30 November 2012 Abstracts deadline 1 February 2013 Speakers notified 5 April 2013 Submit draft papers 5 July 2013 Speakers to submit final papers & speakers must register ISTT NEWS October 2012 - Trenchless International Call for Papers now open Authors are invited to submit abstracts for presentations to be considered by the Program Technical Committee, composed of ISTT and ASTT representatives. The conference will feature plenary and streamed sessions and all papers will be considered on the basis of technical merit, interest to the industry and relevance to the event. Submission guidelines You must submit a speaker biography (80 words) and an abstract. Figures, tables, diagrams and illustrations as part of your abstract are optional. Abstracts must be in English and must have relevance to the themes of the event. Authors will be advised of the status of their abstracts by 1 February 2013, at which time they will be requested to provide a full paper. Full papers will be published in conjunction with the conference and should be no longer than eight pages. The full papers must be submitted by 5 April 2013. Topics and themes Abstracts may be submitted on any topic relevant to Trenchless Technology including new installations, rehabilitation, replacement, inspection, and assessment of all underground utilities including water and wastewater, communications and energy. Topics of particular interest include: • New and emerging technology • Whole-of-project case studies • Pressure pipe rehabilitation • Presentations that include input from clients, owners or utilities • Difficult environments • New issues in design and engineering • Pipe materials • Tunnelling • Gas, communications and other nonwater projects. Preference will be given to original material that has not previously been published or presented. However, abstracts previously presented at local or regional meetings, or events in other industries with a limited audience cross-over, will be considered. ISTT NEWS October 2012 - Trenchless International 36 37
- Page 1: In this issue | UK | US | South Ind
- Page 4 and 5: Great Southern Press Pty Ltd query@
- Page 6 and 7: executive director’s report Octob
- Page 8 and 9: Success story Singapore NEWS news O
- Page 10 and 11: Under Brazil Trenchless Internation
- Page 12 and 13: The Society at work in Brazil To pr
- Page 14 and 15: A crew member helps angle the TBM.
- Page 16 and 17: North Shore cables get an upgrade I
- Page 18 and 19: Working the night shift - pipe lini
- Page 22 and 23: Germany brings its best to São Pau
- Page 24 and 25: No-Dig future for South Africa Ston
- Page 26 and 27: SEE US AT 36 Physically verifying u
- Page 28 and 29: The importance of integration Wheth
- Page 30 and 31: company news October 2012 - Trenchl
- Page 32 and 33: About ISTT/Membership Web: www.fstt
- Page 34 and 35: PRIME HORIZONTAL Have an HDD Inters
The ASTT's 2011 No-Dig Exhibition Hall.<br />
SEE US AT<br />
93<br />
BOOTH NO.<br />
Abstract submission categories<br />
Successful applicants will be requested<br />
to make a 20 minute oral presentation<br />
during the free paper session of the scientific<br />
program. The 20 minute presentation will<br />
be followed by 10 minutes of questions and<br />
answers (total of 30 minutes).<br />
Delegates at the ASTT's 2011 No-Dig<br />
enjoying the evening River Cruise.<br />
Sydney is calling<br />
The ISTT has opened the Call for Papers for No-Dig 2013, which is being held from 1–4 September,<br />
in Sydney, Australia.<br />
Conditions<br />
It is a condition of submission that the<br />
presenting author of the abstract must pay<br />
to register for the conference by 5 July<br />
2013. Registration payments not received<br />
by this date will result in presenters being<br />
withdrawn from the program. Please also<br />
note that accepted authors will be required<br />
to submit a full paper (maximum eight pages)<br />
for publication.<br />
All abstracts and full papers will be<br />
published for distribution to delegates at<br />
the conference and may subsequently<br />
be published separately. Authors will<br />
be required to assign copyright to the<br />
ISTT/ASTT.<br />
To submit<br />
Abstracts can be submitted via the event<br />
website www.nodigdownunder/speakers<br />
or email conference@gs-press.com.au<br />
Please call Great Southern Press on<br />
+61 3 9248 5178 for further information.<br />
Deadlines<br />
30 November 2012 Abstracts deadline<br />
1 February 2013 Speakers notified<br />
5 April 2013 Submit draft papers<br />
5 July 2013 Speakers to submit<br />
final papers & speakers must register<br />
ISTT NEWS<br />
October 2012 - <strong>Trenchless</strong> <strong>International</strong><br />
Call for Papers now open<br />
Authors are invited to submit abstracts<br />
for presentations to be considered by the<br />
Program Technical Committee, composed<br />
of ISTT and ASTT representatives.<br />
The conference will feature plenary and<br />
streamed sessions and all papers will be considered<br />
on the basis of technical merit, interest<br />
to the industry and relevance to the event.<br />
Submission guidelines<br />
You must submit a speaker biography<br />
(80 words) and an abstract. Figures, tables,<br />
diagrams and illustrations as part of your<br />
abstract are optional. Abstracts must be<br />
in English and must have relevance to the<br />
themes of the event.<br />
Authors will be advised of the status of<br />
their abstracts by 1 February 2013, at which<br />
time they will be requested to provide a<br />
full paper. Full papers will be published in<br />
conjunction with the conference and should<br />
be no longer than eight pages. The full<br />
papers must be submitted by 5 April 2013.<br />
Topics and themes<br />
Abstracts may be submitted on any<br />
topic relevant to <strong>Trenchless</strong> Technology<br />
including new installations, rehabilitation,<br />
replacement, inspection, and assessment of<br />
all underground utilities including water and<br />
wastewater, communications and energy.<br />
Topics of particular interest include:<br />
• New and emerging technology<br />
• Whole-of-project case studies<br />
• Pressure pipe rehabilitation<br />
• Presentations that include input from<br />
clients, owners or utilities<br />
• Difficult environments<br />
• New issues in design and engineering<br />
• Pipe materials<br />
• Tunnelling<br />
• Gas, communications and other nonwater<br />
projects.<br />
Preference will be given to original material<br />
that has not previously been published or<br />
presented. However, abstracts previously<br />
presented at local or regional meetings,<br />
or events in other industries with a limited<br />
audience cross-over, will be considered.<br />
ISTT NEWS<br />
October 2012 - <strong>Trenchless</strong> <strong>International</strong><br />
36<br />
37
Change language