News and Articles
Jun 18, 2007
Article
Combined in-line inspection of pipelines for metal loss and cracks
As pipelines grow in age it is of ever growing importance to provide operators with precise and reliable inspection data in order to perform advanced integrity assessment calculation and optimize maintenance processes. Until recently the inspection of a pipeline regarding metal loss and cracks not only constituted the need for two separate inspection runs but also the use of two separate tools. This paper will introduce a range of advanced in-line inspection tools that incorporate the ability to be used for quantitative metal loss and wall thickness as well as crack inspections. These tools, utilizing ultrasound technology, make use of a new generation of electronics and an entirely new design of sensor carrier to enable metal loss and crack inspection surveys to be performed with a single tool in a single run. The paper will explain the physical principle used, introduce the tool technology, introduce a case study and present the operational advantages to the operator.
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Jun 14, 2007
News
Short in stature - new JT922 long on everything else
The Ditch Witch organization has introduced a powerful new horizontal directional drill that is more maneuverable, easier to operate, and easier to maintain than any other machine in its class.
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Jun 12, 2007
News
Online site registration opens for World Water Monitoring Day 2007
Online site registration is now open for World Water Monitoring Day™ (WWMD) 2007. Held annually from September 18 through October 18, WWMD is an international outreach program that builds public awareness and involvement in protecting water resources around the world by engaging communities in performing monitoring tests on local rivers, streams, estuaries and other water bodies.
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Jun 08, 2007
Article
Dealing with lost circulation in HDD applications
Lost circulation can result in costly and unnecessary delays for HDD projects, the selection of proper drilling fluid, additives, reamers, and the application of good drilling practices can help the operator achieve success and profitability.
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Jun 06, 2007
News
Supply of TBM for Oztas Co. - Gûrpinar & Firuzkoy Tunnels, Istanbul
Turkish contractors Oztas Co. have signed a contract for the supply of a refurbished LOVAT RME136SE Series 19500 Earth Pressure Balance Tunnel Boring Machine [TBM]. The TBM will be utilized in the construction of the Gûrpinar & Firuzkoy Tunnels located in Istanbul, Turkey. The TBM will undergo a complete refurbishment at LOVAT’s facilities in Toronto, Canada, including conformity to European “CE” standards.
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Jun 05, 2007
News
Public to have new opportunity for consultation on proposed reservoir - Extended consultation period made possible by amended legislation
Changes to legislation will result in a further period of consultation for people interested in commenting on Thames Water’s proposed reservoir near Abingdon, Oxfordshire.
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Jun 05, 2007
News
Insituform BlueTM to rehabilitate 1200 meters of Calgary water main with PolyFlexTM: trenchless method will save valued spruce trees
Insituform Blue, a division of Insituform Technologies, Inc., will renew 1200 meters of a 12-inch water distribution main in Calgary, Canada. The City of Calgary chose Insituform Blue’s trenchless pipe renewal process in an effort to avoid the removal and replacement of a number of spruce trees along a 1200-meter water main. The trenchless project will make it possible to save 149 spruce trees that the city values at $717,000. Traditional “dig and replace” methods would have required cutting down the trees, which are valued not only for their price, but also their environmental significance.
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Jun 04, 2007
Article
Lateral liner wanted: fitted, no crease and tight
Fitting accuracy, flat surface and leaktightness: the latest IKT-Product-Test "Liners for Laterals" shows which liners fulfil the requirements of the network operators. The marks range from "VERY GOOD" to "POOR". Even the best liner, however, is not always free of malfunction.
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May 30, 2007
News
Trenchless Australasia 2008 - Call for Papers - abstract deadline extended
The Call for Papers for Trenchless Australasia 2008 is now open and interested parties are invited to submit an abstract online. All abstracts are due by August 31, so mark this in your diary and start thinking now!
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May 29, 2007
News
Four of seven roadheaders now working on north-south bypass tunnel
Tunnelling on Brisbane’s North-South Bypass Tunnel continues to gather pace with four of seven roadheaders now working on the project.
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May 24, 2007
News
Industry focus at World Water Week
The plastic pipe industry will be looking closely at this year's World Water Week in Stockholm. A highly appropriate theme for the industry has been chosen namely, Progress and Prospects on Water: Striving for Sustainability in a Changing World.
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May 23, 2007
Article
Pipeline inspection techniques
Thorough surveys are essential for all pipeline infrastructure to avoid unforeseen problems, and there is a considerable range of techniques and methods for inspection and condition reporting that assist in catching major surprises before they happen.
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May 22, 2007
News
Deep drilling rig #4: Contract "signed and sealed"
HERRENKNECHT VERTICAL GmbH sold its fourth deep drilling rig: Future owner is STREIF Baulogistik, a company of the HOCHTIEF Group. With the rig, STREIF Baulogistik will complete its range of specialized equipment with another highlight. Lessee of the deep drilling rig is Hochtief Construction: The rig Terra Invader 350 is scheduled to start tackling its mission, the later development of geothermal energy in greater Munich, at the beginning of 2008.
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May 21, 2007
News
bauma FORUM 2007 for the mining industry
bauma 2007 was the most successful bauma ever and exceeded all expectations not only regarding the number of exhibitors but also concerning the number of visitors. In addition to all records and the great feedback, bauma 2007 celebrated a fantastic première: For the first time, bauma featured the so called bauma FORUM which provided exhibitors and visitors with all newsworthy information on the market for mining machinery, tunnel construction and processing technology as well as on new product developments.
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May 18, 2007
Article
Pipeline scanning: Novel technology for detection of voids and internal defects in non-conductive buried pipes
Non-conductive buried pipe systems deteriorate over time under the action of various applied and environmental loads, chemical and microbiological induced corrosions, and differential settlements. A key for effective infrastructure management practices is the availability of reliable and timely inspection data that serve as the basis for the selection of proper rehabilitation/replacement methods. CCTV inspection is limited to detection of visible defects on the inner wall of the pipe. Defects hidden beneath encrustation, cement mortar lining or a thermoplastic liner, as well as voids immediately outside of the pipe, are currently difficult if not impossible to detect. It is proposed to develop a novel inspection technology, employing ultra-wideband (UWB) pulsed radar system, for detecting “below surface” defects, corrosion, and out-of-pipe voids in non-metallic buried pipes. This paper presents the theoretical foundation for the proposed method, followed by the results of a detailed numerical simulation. The numerical simulation employed custom-developed finite difference time domain (FDTD) code using a cylindrical coordinate system. Results from simulating the scanning of selected soil-pipe interface scenarios are presented. Experimental validation efforts of the proposed pipe scanning approach are also described.
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May 16, 2007
News
The Renewable Energy Centre discusses the future of water recycling
With ever increasing temperatures, less rainfall and a summer hosepipe ban a likely possibility this year, The Renewable Energy Centre discusses water recycling and how useful it will be to us in the future?
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May 14, 2007
News
Robbins receives prestigious award for AMR Project in India
On April 12, 2007, Robbins was named Small Business Environmental Project Exporter of the Year by the Export-Import Bank of the United States. The recent accolade is in reference to the AMR Project in Andhra Pradesh, India. The contract is for the largest single TBM order in history, which includes two Robbins 10 m (32.8 ft) diameter Double Shield machines, back-up systems, conveyors, cutters, other associated equipment, and personnel. Ex-Im Bank is involved in the project through backing the contract with a Working Capital Guarantee (WCG).
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May 11, 2007
Article
Testing and optimisation using stress tests
The TÜV SÜD stress test constitutes of integral strength testing to eliminate critical defects. This method optimises pipeline operation, extends the service life and enhances the safety and cost-effectiveness of pipelines.
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May 08, 2007
Article
Large profiled plastic pipes: practical experience and test concepts
Besides the so-called classic materials concrete, reinforced concrete, vitrified clay and cast iron, plastic products are increasingly used for the construction, renewal and renovation of drains and sewers. Numerous surveys, research projects and product tests by the IKT - Institute for Underground Infrastructure (Gelsenkirchen, Germany) have dealt with the behaviour of single products under practical and laboratory conditions (cf. [1], [2], [3], [4]). Special emphasis was put on the rehabilitation of sewers, the investigation of special applications, the influence of quality as well as the determination of demands on the dimensioning and testing of pipes and construction methods.
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May 08, 2007
News
Water UK appoints accreditation body for in situ lining of water mains
Water UK has appointed the United Kingdom Accreditation Service (UKAS) to accredit companies wishing to be nominated certifying bodies for contractors carrying out in situ lining of water mains.
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May 07, 2007
News
NASTT is now accepting abstracts for the 2008 No-Dig Conference in Dallas
Deadline for Submissions: June 15, 2007
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May 07, 2007
Article
Environmental treatment for aircraft wash-water
Washing and maintaining aircraft can produce a lot of environmental contamination, especially in the form of heavy metals. Stockholm’s Arlanda airport has, for several years, been operating a purpose-designed, wash-water treatment plant to take care of this problem.
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May 04, 2007
News
Water industry fares well in international line-up - says Ofwat report
The water industry in England and Wales compares well against a wide range of countries in Europe, North America and Australia, says a new report published by Ofwat in April.
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May 02, 2007
News
Northwest Chapter to Host Horizontal Directional Drilling (HDD) Good Practices Guidelines Training
The Northwest Chapter of the North American Society for Trenchless Technology is pleased to offer a two-day Horizontal Directional Drilling (HDD) Good Practices Guidelines Course, May 15-16 at the Swedish Cultural Center in Seattle.
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May 01, 2007
News
Pipelife acquires Quality Plastics in Ireland
Pipelife, one of the world leaders in Plastic Pipes and Fittings, acquires Quality Plastics in Ireland.
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