tunnel's - Trenchless International

Success story
Singapore
NEWS
news
October 2012 - Trenchless International
10
Singapore watermains to be assessed
In Singapore, PUB, the nation’s national water agency, will be
assessing the condition of water transmission mains by using acoustic
pipe condition assessment services.
Echologics was selected as contractor because its technology
was able to meet PUB’s requirements to assess ageing transmission
mains in its service area and provide information that can be used as
part of its ongoing asset management strategy.
The company will acoustically survey approximately 1.6 km of cast
iron and steel water transmission mains, ranging from 500 mm–800 mm
in diameter, in PUB’s service area to non-invasively detect leaks and
measure the mains’ effective wall thickness.
Glasgow city centre watermains upgrade
Pipelining nightshift in Brussels
Scottish Water is set to commence a major upgrade of the water
pipe network in the Glasgow city centre by replacing 5 miles of ageing
distribution mains to improve services.
The £3.5 million upgrade will reduce the risk of bursts and the inconvenience
to customers, road users and pedestrians caused by them.
Many of the pipes that supply water to thousands of properties and
customers in the city centre date back to the Victorian age and the area
has suffered from a number of bursts and disruption to supply recently.
The project is expected to be complete by mid-2013.
In the Belgian capital of Brussels, KMG Pipe Technologies recently
carried out an overnight sewer rehabilitation project using synthetic fibre
pipelining materials.
For the rehabilitation of the 169 m long oval profile 600/900 mm sewer, a
Uniliner synthetic fibre liner was employed.
The installation team inverted the liner using a 3.5 m high mobile winding
tower. Once the liner was installed into the sewer, it was cured with steam
injected into the liner by a truck-mounted steam generator.
For a full project re-cap turn to page 30.
New sewers in Tilehurst nearing completion
A complex project to upsize sewers in Tilehurst, located outside of London, to
cope with an additional 95 tonnes of sewage is nearly complete.
Since January 2012, Thames Water contractor for the project, Optimise, have
been installing new sewer pipes to upgrade the area’s network with an auger borer.
Auger boring is being used to create the new path for the sewer pipe, minimising
the number of open trenches required. This technique makes the installation
process quicker and less disruptive.
The £1 million project has seen bigger sewers laid in Hildens Drive, City Road,
Longworth Avenue and Foxcombe Drive.
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Achievement:
Sewer extension to serve North Coast
Area – Contract 3 was given priority
status by the Public Utilities Board, the
developers of land surrounding the
Woodland North Coast Area. The aim
of the project was to provide service
to the Woodland North Coast Area
and, due to the scheduled start of
construction on a new factory, delays
were simply not acceptable.
The project, which involved installing
1.1 km of sewage lines (1 m in diameter)
and constructing seven manholes,
needed to be completed in a mere six
months.
Project background
Client
Public Utilities Board
Job site
Singapore, Admiralty Road
West
Main contractor Swee Hong Engineering
Construction Pte Ltd
Total project length 1,100 m
Geology
Silt and gravel
mts Perforator GmbH
Am Heisterbusch 18a
19246 Lüttow-Valluhn,
Germany
Using an mts800S2 jacking machine,
upskinned to ID1000/ OD1350, the
sewer lines were fully completed
within three months, with a record of
54 meters installed in a single 12-hour
shift.
With this equipment, it was possible
to complete the project within the
contractually agreed time period.
Tel.: +49-38851-3270
Fax.: +49-38851-32710
Customer
Machine
Max. torque
Max. drive length
Internet: www.mts-p.de
E-mail: info@mts-p.de
Short facts
Swee Hong
Engineering
Construction Pte Ltd
mts800S2
71,000 Nm
150 m