Articles & Case Studies

OPTIons UTILITY SERVICES LTD CARRY OUT UNDER CROSSING OF THE RIVER CHERWELL USING THEIR RECENTLY ACQUIRED GRUNDODRILL 20S HDD RIG

Posted: Tuesday 29th December 2009

As part of Scottish & Southernís ongoing commitment to upgrade their existing distribution network, a section of overhead power line at Bletchingdon, Oxfordshire, was identified as needing replacement. This overhead cable passed over an area of leisure and recreation across the River Cherwell which was 30 metres in width. For safety reasons the client decided that this cable should be taken down and installed 6 Metres beneath the river bed and the newly acquired GRUNDODRILL 20S was the right equipment to do this. The 95 Metre long pilot bore was completed without problem and the trackable bore head arrived exactly on target in the prepared exit trench very near to the building and electricity pole shown in the far distance. The pilot bore head was easily removed using the Quick Connect removal adapter which was in turn replaced with the highly productive Grundoream 300mm diameter back reamer.

The GRUNDODRILL effortlessly reamed a clean hole and the 180mm diameter PE cable duct was successfully installed in just one pass.

Options Management and staff were delighted with the power and performance of their new Trenchless Technology equipment acquisition and many more cable laying projects are currently being planned using the cost effective and environmentally friendly HDD technology.




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