Microtunnelling overcomes complex conditions
Delegates at No-Dig Down Under 2013 learned about how innovative microtunnelling methods have been utilised as part of the upgrades to Melbourne’s Docklands Precinct through a case study led by Edge Underground Owner Stuart Harrison. The project has involved the installation of 320 m of 400 mm gravity sewer. HOBAS pipe using new microtunnelling technology. The challenges and specifics of this project to be discussed in the presentation include: Complexity Very short timeframes The pipe is 3 m below water table in marine silt (Coode Island silt) The Project is situated 50 m from the shoreline on reclaimed land with many obstructions,...
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JOURNEY-MAN RETURNS HOME
After taking his innovations from Australia to an international platform, founder of trenchless company Edge Underground and creator of the Vermeer AXIS Guided Boring system Stuart Harrison has come back to the land Down Under. Mr Harrison began his career in his father’s excavation company, and was involved in the installation of sewer and water pipelines for more than 25 years using various open-cut and trenchless methods. In 1999 he took the opportunity to start a trenchless division of his father’s company and by late 2000 he began importing and testing numerous international microtunnelling machines, none of which seemed to...
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Victoria Harbour, Docklands
Victoria Harbour is positioned in the Melbourne Docklands area on the mouth of the Yarra River was a challenging projects for many reasons. Water saturated Coode Island silt (3 meters below water table) As close as 30m to the Yarra river 15 timber pylons and many concrete/rubble sections Busy construction site Edge Underground utilised the Axis Guided Boring System to install 427OD Hobas Jacking Pipe to install over 300m of gravity sewers on minimal grades. The method was no only able to handle the soft wet silt but also able to drill through the many pylons and rubble present throughout...
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Axis Guided Boring System Wins International No-Dig Innovative New Product Award
In 2009 at the International No-Dig show in Toronto Canada, The Vermeer Axis Guided Boring system was awarded the "Innovative new product" award at the technologies market premier. This award was great recognition for the Australian Inventor of the system "Stuart Harrison" and his technology partners Vermeer.
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Axis vs Open Cut
In Australia and all over the world, project by project, Axis is being recognised as being a cost effective alternative to tradtional open cut methods. Edge Underground have repeatedly been able to offer a microtunnelling solutions to a traditional open cut project.
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Axis – wins via KO in the emissions stakes
For some time the belief has been that microtunnelling can install pipelines with dramatic emissions savings In Portland Oregon, Edge Underground took on an open cut project via the Axis guided boring system. The project required the installation on 16" gravity sewer mains. The area was a scenic neighborhood on the outskirts of Portland Oregon USA. Edge Underground offered a competitve package to Northwest Excavations and was given the nod. During the installation Dr Sam Ariaratnam ( now ISTT president ) and his team at Arizona State University did an emissions study utilizing the "E Calc" emissions calculator. The results were...
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Vermeer Axis Guided Boring Pilot Shot for Robbins SBU – Edge Underground & Midwest Mole JV
When Dan Liotti of Midwest Mole contacted Stuart Harrison of Edge Underground regarding a 400 foot interstate freeway crossing in Mt Vernon IL USA their creative juices started to flow. The crossing required a 36 inch steel casing to be inserted 30 feet deep in below water table layered shale and limestone. The issue was the length of the installation would require numberous SBU adjustments which was estimated to take up to 6 weeks. The decision was made to use Edge Underground and the Vermeer Axis Guided Boring system to pilot shot the line for the Robbins SBU. Edge were able to...
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