Shore is smooth

The new Spacebrace shoring system from Mechshore solved a tight problem recently on one of Britain's oldest motorways, the M6 between junctions 30-32.

This section is currently being widened, and contractor Balfour Beatty is installing several spilt fuel interceptor tanks to prevent pollution of local rivers and reservoirs. The problem arose at Junction 31 where new slip roads are being constructed over the river Ribble.

The plans required installation of an interceptor measuring over 17m long in an excavation only 17.8 x 4.2m and 6m deep, where poor ground conditions were likely to produce high loadings on shoring frames and sheeting.

Mechshore used the Spacebrace units in combination with three levels of shoring and Lars sen pile section sheeting. The Spacebrace units replaced the cross bracing that would otherwise have been necessary, providing a clear span into which the tank could be lowered. Long Spacebrace stanchions were then wedged into holes in the blinding layer.

As a result of the smooth in stallation this system offered, Mechplant was asked to provide temporary works schemes for all the interceptor tank placements on Balfour Beatty's section of the works.

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