HDD

From the magazine, HDD, Markets, Rehabilitation, Tunnelling, Utility location, Wastewater

Replacement of existing sewer and water mains using pipe bursting

Samuel Ariaratnam is a Trenchless Technology academic with a specialised knowledge of pipe bursting. This paper, which Samuel recently presented at enviroNZ05, provides a detailed summary of pipe bursting, highlights the benefits of using Trenchless Technologies over traditional open-cut rehabilitation methods and outlines the possibilities pipe bursting can provide for pipeline repair.


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From the magazine, HDD, Rehabilitation, Tunnelling, Utility location

Tracto-Technik’s Grundoburst 1250G in China

In May 2006, Beijing company Chuanganya Trenchless Technology upgraded to the new Grundoburst 1250G (125 tonne) pipe bursting system from their previous Grundoburst 800G (80 tonne) unit. As larger diameter pipes would require the performance of a more powerful system, the upgrade would give the company a greater range to add to their capabilities.
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From the magazine, HDD

A Day in the Life

As the 2720AT tri-cone cut its way through the hard rock formation in one of Sydney's residential areas, a familiar process is taking place. Up and down the side streets lay an arrangement of safety signs and witches hats with the occasional barricaded pit stretching across the nature strip.
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From the magazine, HDD, Rehabilitation, Tunnelling, Utility location

Ipswich water main replaced with Grundoburst 800G

Ipswich Water, west of Brisbane, like most local councils, have hundreds of kilometres of water mains in their water distribution network. These mains do not last forever and will require rehabilitation eventually. After many years of service this 225mm cast iron main had some repairs which were becoming more and more frequent due to a combination of the black soil movement in the area and corrosion of the cast iron material.
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From the magazine, HDD, Markets, Rehabilitation, Tunnelling, Utility location, Wastewater

HDD reaches new levels of accuracy for on-grade sewer projects

Australian Capital Territory's "Land Development Agency" engaged the UEA Group's Trenchless Division to construct a rising sewer main for the Kingston Foreshore Development. Horizontal Directional Drilling (HDD) is becoming increasingly popular to undertake "on-grade" sewer projects as an alternative to mainstream pipeline construction methods.
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From the magazine, HDD, Rehabilitation, Tunnelling, Utility location

Pitch firbre pipe replacement keeps Cornish businesses open

Drainage contractor Charlton Drains of Tewkesbury Gloucestershire, United Kingdom, recently undertook a major size-for-size pipe replacement project in the picturesque Cornish fishing village of Looe, in East Cornwall. Lessons learned throughout this project will be of interest to readers of Trenchless Australasia and will be applicable to projects in our region.
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