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Monday 06 September 2010

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Trenchless Jobsites

Here we keep you informed about the latest practical projects.
We are also looking forward to publishing your articles here. If you are interested, just contact us.

Technique Description

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A major pipe bursting project in Geneva

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It was a mammoth task that contractor PIASIO, a daughter company of COLAS SWITZERLAND, had ahead of it in Geneva Meyrin, Switzerland. Applying a GRUNDOBURST 2500 G (250 t pulling force) pipe bursting system to an aged and under-dimensioned 500 mm diameter grey cast iron drinking water transport pipe. This original pipe was to be replaced by a 730 mm diameter concrete pipe with a steel core, made by BONNA.
(Source: TrenchlessWorks, issue 48/2010)

Technique Description

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Veolia Water Network Services make it five

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Veolia Water Network Services has again shown their commitment to having the highest quality and most reliable machines in their fleet of trenchless equipment by purchasing another Tracto-Technik (TT) product, the 800G Grundoburst machine. Veolia Water Network Services General Manager Kent Johns and Project Manager Joe Mushoul both agree that with the amount of pipe they have to put in the ground, the TT 800G Grundoburst was the only choice.
(Source: Trenchless Australasia, issue July 2010)

Rehabilitation in Dunedin

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Interflow is currently in the final stages of completing a $NZ1.6 million sewer rehabilitation contract for Dunedin City Council in New Zealand. The project involves rehabilitating 5,687 m of sewer pipe ranging in size from 150 – 600 mm in diameter (the majority in the 225 mm and 300 mm size range) and includes the sealing of 124 laterals.
(Source: Trenchless Australasia, issue July 2010)

OPAL crosses the river Peene

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While building the connection line to the Baltic Sea Pipeline OPAL, concerns for the environment and nature conservation issues were to take an exceptional position. For this reason, the Peene is momentarily being undercrossed employing a sophisticated, longrange pipe installation operation.
(Source: bi UmweltBau, 4/2010)

Developments in UV-Lining technologies

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As the demands of the sewer rehabilitation market develop, constant technical development from both the liner and equipment manufacturers is required. One of these developments has been the use of ultra violet light (UV) cured rehabilitation technology. Not many years ago, UV was only used in small diameter pipe work by a handful of installation contractors. Over the years UV has become a more accepted rehabilitation technique with greater (year-on-year) rehabilitated metereages achieved with diameters up to DN1200.
(Source: Trenchless Works, issue 47/2010)

Inspection and rehabilitation of a large diameter sewer

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Inspection and condition is a challenging component of any rehabilitation program. In Canada one project team developed innovative planning and specialised equipment to achieve a positive outcome for the city of Hamilton, Ontario.
(Kevin Bainbridge, City of Hamilton and David Crowder, Gerald Bauer, R.V. Anderson Associates Limited, in Trenchless International, 07/2010)

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Road surfaces after trenchless installation jobs

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Potable waterlines, power cables, communication lines, natural gas, district heating or sewer lines run along under the ground, beneath roads and pavements, where we hardly become aware of them. But when it comes to installing new lines or repairing the old ones, they are suddenly brought into focus.
(Dr. H.-J. Bayer, in bi UmweltBau, 3/2010)

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CIPP foils Danish rats

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At the SSTT’s annual meeting in Bergen, Norway, Århus Vand A/S and the contractor Per Aarsleff A/S won the audience’s, as well as the professional jury’s, No-Dig award for the most innovative project – the longest CIPP project in Aarhus municipality to date.
(Peter Hjortdal, Arhus Vand A/S in Trenchless International, 07/2010)

HDD Industry Riding Out Recession Better Than Other Market Niches

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As the current recession begins to ebb, market stabilization in 2010 seems to be a viable goal for many contractors in the underground construction market, with many areas still struggling to survive another tough year.
(Source: Underground Construction)

Technique Description

New pipe installation method lives up to expectations

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The second Direct Pipe venture on a global scale was accomplished in Rysum. It was the first time that a product pipe was installed with this method, therefore the jobsite had something of an opening character.
(Source: bi UmweltBau, issue 2/2010)

TTAP bursts the bubble on competition

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The South East Queensland Underroad Drilling team and local contractor Josh Taylor recently undertook and successfully completed a difficult project at Hope Island, on the northern end of Queensland’s Gold Coast.
(Source: Trenchless Australasia, 4/2010)

Why trenchless is the green choice

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There are a number of reasons why Trenchless Technology is a sustainable and greener alternative. Trenchless industry representatives are working to identify and quantify the ecological advantages of selecting trenchless techniques. This can assist suppliers and contractors in arguing for a certain technology.
(Source: Trenchless Australasia, 4/2010)

Technique Description

HDD in areas potentially contaminated by warefare agents

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Completely new methods for sounding to locate warfare agents in potentially contaminated areas and for opening a circular bore hole area for new line installation.
(Roland Stutzki in bi UmweltBau, 1/2010)

Sewer Rehabilitation with SPR Wrapped Pipe method

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In 2009, here as well as there, the KMG LinerTec, (Glebitzsch), renewed large-sized sewers successfully with the SPR wrapped pipe lining method produced by the company Sekisui SPR from Schieder-Schwalenberg. In the cosmopolitan city as well as in the small town, the SPR method, originating from Japan, was able to tap the full potential of its system-specific advantages.
(Source: bi UmweltBau, 1/2010)

Technique Description

Powering New York State

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The recent expansion of an electric substation in rural New York State required trenchless installation of a 345 kilovolt duct bank through an existing rock slope, below live overhead wires – an optically guided, downhole hammer was selected to complete the job.
(Source: Trenchless International, issue 4/2010)

Trenchless installation of a new house connection pipe

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The waste water connection pipe of a family in Wildeshausen, Germany when inspected indicated some fracture damage, which was causing it to block regularly which meant that it constantly needing to be jetted clean. For this reason a decision was made to install a new pipe. The problem was that only 2 years previously the road had been renewed and a repair or new installation for the house connection pipe using the open trenching methods would have split the supporting layer of tarmac potentially causing subsequent road subsidence.
(Source: TrenchlessWorks, issue 43/2010)

Yes, You Can Shift an Old Tree

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Quite often, there is an alternative to the power saw if trees are standing in the way of an inevitable building project. Shifting large trees offers a wealth of interesting advantages, not only from an ecological point of view.
(Klaus Schröder in bi UmweltBau, issue 6/2009)

Inspection Chambers Economically Rehabilitated

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In the course of sewer rehabilitation in Erding, the house connections and inspection chambers belonging to the properties are systematically inspected and rehabilitated. The association for sewage treatment Erdinger Moos (AZV) as the ordering party and its engineering office definitively showed an innovative spirit when exhibiting their rehabilitation concept.
(Source: bi UmweltBau, issue, 9/2009)

Directional drilling leads to pipeline success

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Severe flooding during Tropical Cyclone Charlotte in February 2009 saw the Far North Queensland township of Karumba left without a potable water supply after part of the 44 kilometre Karumba Water Supply Pipeline was washed away. Carpentaria Shire Council contracted JR & LM Tracksons Directional Drilling to complete urgent repairs to the pipeline under the Norman River, using Vermeer's D330 x 500 HDD rig, in just seven weeks.
(Source: Trenchless Australasia, issue 12/2009)

Long term structural solution for the rehabilitation in Ireland

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The Ballyogan Landfill and Recycling Park (BRP) is located in the Townland of Jamestown, Carrickmines, Dublin 18, approximately 9 km Southwest of Dun Laoghaire, Ireland. The surrounding area is characterised by a mixture of agricultural, recreational, residential, commercial and industrial land use. The total site area is approximately 62 hectares, 43 of which were used for landfill. The BRP currently occupies approximately 11 hectares. The remaining area consists of the landfill site entrance and service roads, site compound, landfill gas combustion plant, methane stripping plant and other services.
(Source: Insituform Technologies Ltd.)

CIPP liners show flexibility in deteriorated stormwater pipes

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Insituform’s cured-in-place pipe (CIPP) lining systems are continuing to develop an excellent reputation in the rehabilitation of severely deteriorated stormwater pipes.
(Source: Trenchless Australasia, 12/2009)

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Trenchless installation methods for sea outfalls

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Trenchless installation methods have less impact on the environment and the existing infrastructure than other methods such as open cut trenching. Pipelines that are laid underground are better protected against damage and therefore have a higher life expectancy than those laid above ground. For the installation of sea outfalls and seawater intakes, Pipe Jacking/Microtunnelling, Segment Lined Tunnels and Horizontal Directional Drilling (HDD) methods may be applied depending on the site and ground conditions, pipe diameter and length to be installed, as well as on constructability and economic factors.
(Lutz zur Linde, Herrenknecht AG Utility Tunnelling, in Trenchless Works, issue 41/2010)

Technique Description

HDD: Crossing the Athabasca River

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Fort McMurray is the major urban centre within the Regional Municipality of Wood Buffalo, located in northeast Alberta, Canada, the town is situated just south of a major oilsands development. To service the expansive urban growth in the area, the municipality has invested in major infrastructure upgrades, including twin sanitary sewer forcemain crossing of the Athabasca River.
(Source: Trenchless International, issue Jan/2010)

Composite liner adds long life to rehabilitated rail culverts

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Insituform Technologies Ltd. (ITL), a leader in the provision of rehabilitation systems for the repair of deteriorated pipelines across the globe, has developed techniques and products over the years that have a wide range of application across the international water industry. In addition to potable water and wastewater pipelines, ITL has also developed exper t ise in the rehabilitation of storm and surface water drainage systems, including culverts.
(Source: Trenchless Works, issue 40/2009)

Renovation of a Sewer Main in Strasbourg with Hobas

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The reconstruction of the sewer main for the Rhine Harbour of Strasbourg was a model example of the complementary nature of open-dig and trenchless installation. Where the working space would have been insufficient, rehabilitation was carried out by sliplining prefabricated GRP NC Line panels. Wherever a trench was feasible, CC-GRP Pipes were laid in an excavated trench which was prepared in accordance with pipe installation standards and as the depth required.
(Source: HOBAS Engineering GmbH)

Technique Description

Microtunneling beneath the ICE Route

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During expansion of the railway connection Nuremberg – Ingolstadt – Munich, a storm water line running beneath the route was damaged so badly, it had to be renewed. This was no simple job for the engineers, because the line runs beneath an eight-way track formation frequented by trains going as fast as 200 km/h.
(R. Maier, Steinzeug Abwassersysteme, C. Schulte, Schulte Ingenieure in bi UmweltBau 5/2009)

McLaughlin introduces innovative pipeline boring machine

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McLaughlin Group Inc. has introduced the CBM 48 cradle earth boring machine designed to help speed the installation of steel casing used in the cross-country pipeline industry. “Cradle boring machines were widely used during the pipeline boom of the 1960s and 70s as a means to install longer sections of pipeline casing in a more timeefficient manner,” said Dave Gasmovic, president of McLaughlin.
(Source: TrenchlessWorks, issue38/2009)

Technique Description

Shoreham harbour HDD installation

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As part of a planned expansion programme and increased need for steel in the UK, Parker Steel of Canterbury has established a new steel yard at the busy Shoreham Harbour in Sussex. To ensure a smooth transition from off loading of the cargo ships to despatch out of the gates, Parker has invested in three new 100 m long and 37 m wide overhead gantry cranes as well as a new shot blasting unit.
(Source: TrenchlessWorks, 38/2009)

Heating energy from the Sewer

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In the near future, a municipal housing estate in Straubing is going to be heated with the waste heat from sewerage. A quite unique system is applied in this project, consisting of a heat exchanger in the bypass cycle, especially designed for this task, combined with a screening unit. Far reaching application possibilities in the area of commercial construction are open to this technique.
(Source: bi UmweltBau, 4/2009)

Sewer rehabilitation project Old Town ring sewer on schedule

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One of the greatest sewer rehabilitation projects in Germany at present is the renewal of a section of the Old Town ring sewer in the centre of Dresden.
(Source:bi UmweltBau, 4/2009)

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