News and Articles
Jan 18, 2008
Article
Non-clogging pumps for sludge handling
With the handling of sludge often the most problematic area in the wastewater treatment process, two wastewater treatment facilities in Scotland and Germany turned to ITT Flygt unit for the installation of non-clogging N-Pumps for greater efficiencies and savings in maintenance.
more
Jan 16, 2008
News
Microtunnelling guru down under
When shove comes to push. James Thomson has the answers.
more
Jan 11, 2008
News
Ditch Witch Aggressive Talon Rock Bit redesigned for greater durability
The Ditch Witch organization has re-released its popular Aggressive Talon Rock Bit with a design modification that will significantly improve performance.
more
Jan 08, 2008
News
Insituform wins record $35.1 million in CIPP work in Delhi, India
Insituform Technologies, Inc. has won two sewer rehabilitation contracts in Delhi, India, totaling $35.1 million, creating the largest municipal sewer project in the company's history.
more
Jan 08, 2008
Article
Critical strain for predicting squeezing potential in tunnels
Squeezing is one of the major construction problems encountered while tunnelling through weak rock masses under high overburden. An initial assessment of the squeezing potential will help in proper design and formulation of strategies. Currently no methods are available which could be used with confidence in the field to assess the squeezing potential. The methods in vogue generally compare the rock mass strength with the in-situ stress to resolve this problem.
more
Jan 04, 2008
News
Powered up with HOBAS
A constantly growing demand for electricity combined with ecological awareness opens big business opportunities especially in the sector of renewable energy production. Austria, with its mountainous areas and numerous streams lends itself to the establishment of hydro power stations.
more
Jan 02, 2008
News
Eureka! Thames Water invention to help cut leakage by a quarter and reduce customers' bills
Boffins at Thames Water have come up with up a new invention to reduce the millions of litres of water lost through leaking pipes by up to a quarter.
more
Dec 27, 2007
News
Gotthard Base Tunnel: Work on installing the railway infrastructure can begin
AlpTransit Gotthard Ltd (ATG) as owner, and the Swiss Railway Infrastructure Consortium Gotthard (SBK), have reached agreement on withdrawal of the appeal against the award of the contract for installation of the railway infrastructure in the Gotthard Base Tunnel. This finally opens the way for work to start on the project-of-the-century railway infrastructure of the Gotthard Base Tunnel.
more
Dec 20, 2007
News
Water Environment Federation launches new, improved web site for the Water Is Life, and Infrastructure Makes It Happen public education program
The Water Environment Federation (WEF) announces the launch of a new and improved Web site for Water Is Life, and Infrastructure Makes It Happen (www.WaterIsLife.net), a national public education program that builds awareness about the value of water and wastewater infrastructure and the importance of investing in its long-term stability.
more
Dec 19, 2007
Article
Structural monitoring of a GRP jacking project with CoJack
At present the first jacking project with a special version of the calculation program CoJack for GPR-pipes is being carried out in Essen, Germany.
more
Dec 19, 2007
News
UNITRACC cooperates with Bochum University of Applied Sciences - Test phase becomes confirmed cooperation
Since the start of the winter semester 2007/2008 lecturers and students of the "Urban Water Management" course held at the Bochum University of Applied Sciences (Germany) have been using UNITRACC, the web-based information, learning and working platform, to support their lectures. For the 15 students, who have enrolled for the master degree "Civil Engineering", Prof. Dr.-Ing. Bernd Nolting, director of the environmental engineering lab, uses the platform for his one-semester lecture and laboratory course "Rehabilitation of urban water piping networks".
more
Dec 18, 2007
News
Robbins TBM advances Lebanon′s water system
Oceanside excavation using a Robbins TBM along Lebanon's coast will ultimately bring fresh water to a parched and heavily populated region in the Kesrouane district 20 km (12 mi) north of Beirut. The 4 km (2.5 mi) long El Madiq Tunnel, contracted to the Baresel AG/Al Tajj Est. JV, is part of the much larger Kesrouane Coastal Area Water Supply Project to improve water systems.
more
Dec 13, 2007
News
IFAT 2008 grows and grows
At IFAT, the 15th International Trade Fair for Water – Sewage – Refuse – Recycling, which takes place from 5 to 9 May 2008 in Munich, the visitors can look forward to an impressive range of innovative solutions and new technology for implementing practical, cost-efficient solutions, plus a broad spectrum of services for the sector.
more
Dec 11, 2007
News
Thames Water pledges half a million pounds to restore and improve River Wandle
Thames Water has announced, in conjunction with the Wandle Trust, a £500,000 plan to revive and revitalise the River Wandle in South West London over the next 5 years.
more
Dec 07, 2007
Article
The trenchless challenge in urban Hong Kong
The underground environment in Hong Kong Installing and maintaining underground utilities can be a challenge anywhere, regardless of whether conventional open trench or trenchless methods are adopted. However, every location and environment imposes specific constraints and difficulties, and Hong Kong is a particularly difficult environment in which to work underground.
more
Dec 03, 2007
News
BorSafe proves its value to durable pipe systems around the world
Pipe producers and fittings manufacturers from Europe to China are recognising the processing and long-term performance benefits of recent introductions to the BorSafe™ product range from Borealis, a leading provider of innovative, value creating plastics solutions. BorSafe polyethylene (PE) pressure pipe and fitting grades reflect Borealis’ commitment to contributing to better, safer and more durable pipe systems for drinking water, sanitation and gas distribution.
more
Nov 29, 2007
Article
Development of a new high performance PE pressure pipe system, from design phase to reality
Since the introduction of the first systems more than 40 years ago, PE raw material producers and pipe producers have continuously joined their efforts to propose better and better pressure pipe solutions to the end-users and installers. The development of modern installation techniques, in particular trenchless technologies, has created a need for improved systems, with enhanced insensitivity to installation conditions.
more
Nov 28, 2007
News
TT-UK celebrates 25th anniversary: established 1982-2007
In an ever changing technological and economic climate, Bedford based TT-UK and it's hardworking team continue to build on their successes, offering turn-key methods and equipment solutions to Trenchless Technology problems and continued improvements in the method of installing or replacing pipe and cables underground.
more
Nov 26, 2007
News
EPS begins pipeline construction
The first shovel of earth has been turned for the construction of the Ethylene Pipeline South (EPS). The start of excavation in Gaimersheim near Ingolstadt, Germany, marked the beginning of work on the first of 360 kilometers of pipeline in the EPS. Plans call for the pipeline to reach from Münchsmünster in Bavaria across Baden-Württemberg to Ludwigshafen in Rhineland-Palatinate. Once put into service – planned for September 2008 – the pipeline will connect ethylene producers and processors in southeastern Bavaria with the ethylene center in Northwest Europe.
more
Nov 23, 2007
News
NASTT seeks proposals for the development of cured-in-place-pipe (CIPP) publication
The North American Society for Trenchless Technology (NASTT) is accepting proposals to develop a publication on Cured-in-Place-Pipe (CIPP) that complements the Society's existing CIPP Good Practices course. The CIPP publication will be provided to participants of the training courses and will be offered for sale on the NASTT web site.
more
Nov 22, 2007
Article
Application of HFI-pipes for a pipe-in-pipe system in the North Sea
The gas field Forvie North is located in the North Sea between the Shetland Islands and Norway. In this area the water depth is approx. 118 m. The gas reserve itself is located in a depth of approx. 4 km under the seabed. From here the gas is transported with approximately 95 °C. The North Sea is very cold in this area and in order to avoid the establishment of hydrates, the temperature of the transported material must be kept high. Therefore pipe systems with a high thermal insulation have to be used. The heat conduction coefficient may be max. 1 W/m2K. This value can only be achieved by special insulated pipes as a pipe-in-pipe system.
more
Nov 19, 2007
News
New air valve for sewage applications
VAG-Armaturen GmbH (vag-armaturen.com/en/) has extended its product range by an automatic air valve for sewage applications. The VAG FLOWJET Air Valve can serve as both an aeration valve for the draining of sewage water lines and a deairing valve when sewage water lines are filled. It is also suitable for continuous ventilation under system pressure during operation.
more
Nov 16, 2007
News
Borealis and Borouge launch Water for the World
First global programme in plastics industry addressing water crisisLeverages companies’ leadership to provide sustainable solutionsFosters local knowledge and partnerships throughout value chain to reach those in need
more
Nov 15, 2007
News
Interested experts gather for a "virtual exploration trip through underground infrastructures" - UNITRACC receives official award as "Selected Landmark"
On 8 November the on-line training and competence centre UNITRACC was awarded the prize of a "Selected Landmark 2007" by Mr Reinhard Krella, Chairman of the Management Board Private and Business Clients of the Deutsche Bank Eastern Ruhr Area, at the UNITRACC Open Day held in Bochum, Germany. So now UNITRACC officially belongs to the "365 Landmarks in the Land of Ideas" that are awarded by the initiative "Germany - Land of Ideas" and its project partner Deutsche Bank. Bochum's Lord Mayor Dr Ottilie Scholz also took the opportunity to congratulate UNITRACC on the award in person.
more
Nov 14, 2007
Article
Guidelines for the application of pipe bursting
The number of pipelines to be repaired is ever increasing worldwide – e.g. in Germany, important pipeline rehabilitation projects are not carried out due to the devastating financial situation of the municipalities. Although this problem cannot be resolved completely, economical technologies can contribute toward repairing at least the worst damages. In general, it has to be decided whether repair, renovation or pipe renewal (replacement) is required. A pipe replacement is necessary:when repair or renovation is technically or economically inappropriatewhen the hydraulic capacity has to be improved by a greater pipe diameterwhen repair or renovation offers only a short term solution with a pipe replacement being inevitablewhen there is request for a long lasting pipe durability and or a higher product life spanwhen the static loading capacity of the defective pipe would be otherwise negatively affected
more
