July 2011Sam Ariaratnam
I want to welcome all of you to the summer season. For those of you that had to endure a long and harsh winter, this must bring a lot of relief.John Hemphill
This year, ISTT celebrates its 25th anniversary. It is fitting that the 2011 International No-Dig was held in Germany.Zelda Tupicoff
Does your marketing plan include a budget for online ads? Find out why placing advertisements online is no longer an optional extra.
Trenchless International is pleased to announce a new Canadian office, based out of Toronto, Ontario, with Associate Editor Sarah Paul heading it up.
Mears Group, Inc., a leader in horizontal directional drilling (HDD), through its commitment to continual improvement, has gained the internationally recognised ISO 9001:2008 Quality Management System certification.
The 2011 International No-Dig Gala Dinner and Awards night was an enchanting evening, held in the Charlottenburg Castle in Berlin. Trenchless Technology received the royal treatment with some great projects and people recognised for their outstanding achievement in the industry.
For five years, the City of Atlanta had a problem: an ageing, 18 inch diameter sewer pipe that had been partially exposed due to erosion caused by a nearby creek. The plan called for a dramatic upsize – to 28 inch diameter HDPE pipe – because decades of urban growth had rendered the original pipe’s capacity seriously insufficient.
The Southern African Society for Trenchless Technology (SASTT) will be hosting No-Dig South Africa 2011, to be held in Pretoria, from 23-24 August 2011.
Trenchless International publisher and Managing Director of Great Southern Press (GSP) Chris Bland has been elected to the board of Publishers Australia.Robert Martin, CH2M HILL
Auger boring has evolved significantly in its 80 year history. Here Robert Martin presents a short history of auger boring technology and developments.
As part of its five year investment on essential works to improve ageing water pipes, sewers and other facilities, Thames Water, located in the UK, has two major tunnelling projects in the works – Lee Tunnel and River Thames. Here, Trenchless International provides the most up-to-date information on the projects.by Toru SATO1, 2, Tony SUZUKI2, Hideki SHIMADA1, Takashi SASAOKA1, Kikuo MATSUI 1
In many cases, tunnels in an urban area are constructed near existing facilities and structures, in soft ground that contains underground water. For this kind of work, structural stability of the tunnel and the nearby structures and facilities is vital. Thus, pipe roof method, a closed trenching method, has been attracting the attention of engineers in many countries as a supplementary construction method.
The underground connection to the new Czajka wastewater treatment plant in Warsaw, Poland, was completed successfully and on time. Two Herrenknecht AVND micromachines handled the difficult drives with a total of 5,860 m with bravura.
Ian Vickridge retires
The 2011 ISTT No-Dig was held in Berlin, from 2–5 May, in conjunction with trade expo Wasser Berlin. The event was a resounding success including 173 exhibiting companies, 51 peer reviewed papers from 17 countries and memorable social events.
After receiving the national No-Dig Award by the Polish Society for Trenchless Technology (PFTT) in 2010, Hobas, along with construction company group PBG,was awarded the 2010 ISTT No-Dig Project of the Year Award - Installation for their Czajka project, in Warsaw, Poland. The award was presented to them at the recent conference held in Berlin, Germany.
Following the devastating Christchurch earthquakes, Sydney Water and pipeline rehabilitation companies have been involved with sewer rehabilitation works in the New Zealand city.
The Typhoon, developed by Gateshead based Hydrascan Ltd., in association with Northumbrian Water, was awarded ISTT ‘Best New Machine’ at the 2011 No-Dig Gala Dinner held in Berlin, Germany.Andy Wedgner and David Walton, Borouge
Utility companies are increasingly turning to No-Dig pipe laying technology to renovate and install pipelines because of the economic and social savings. However using techniques such as ‘close fit’ relining or horizontal directional drilling can introduce damage or scores into the surface of the PE pipe that, over time, can develop into cracks and cause the premature failure of the pipeline.
ABS Trenchless has introduced the rope bursting system – the world’s first large pipe bursting system with a rope as the pulling mechanism and a pulling force of more than 1,000 kN.David Crowder, C.E.T., R.V. Anderson Associates; Gerald Bauer, P.Eng., R.V. Anderson Associates Limited; Kevin Bainbridge.
Large diameter sewers are considered critical assets for most municipalities. Preventing catastrophic sewer failures is probably one of the most challenging issues facing Asset Managers today. Recently the City of Hamilton, Ontario, Canada, took a pro-active approach to face this challenge and experimented with a pipe penetrating radar inspection tool (PPR), using Ground Penetrating Radar (GPR) technology.Matt Wheeldon BEng(Hons) CEng MICE, Wessex Water Services Ltd
Deterioration rate modelling for sewers and optimising investigations and investment using a risk-based approach.
Recently, a sewer had to be rehabilitated in the city of Speyer, located in Rhineland-Platinate, Germany, due to corrosion, structural damages and extreme fat deposits. The city called upon Brandenburger’s light-curing pipe liners to rehabilitate the 1.7 km of pipe.Peter Ellegaard Larsen – Business Development Manager, Per Aarsleff A/S, Pipe Technologies
Cured-in-place pipe lining methods are known to cause only minor reductions of pipe cross sections. Here Peter Ellegaard Larsen reviews CIPP techniques and lateral renewal products successfully used in Copenhagen, Denmark.
Planning of sewer rehabilitation in Minden and Roesrath, Germany
A project undertaken by the Urban Drainage Council in Hagen, Germany, was recently recognised for its pipeline construction. Bettina Linke accepted an award for her employers at the 4th German Symposium for trenchless pipe replacement at the University of Siegen.
As a part of a new feature, Trenchless International will introduce you to the members of the ISTT Executive Sub-Committee. Get to know the great people behind the ISTT. Here we speak to Sergio Palazzo from the Brazil Association for Trenchless Technology (ABRATT).