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Removable piles for Olympic foundations?

OLYMPIC GAMES infrastructure will need to have removable and pre-fabricated foundations, delegates at Civils 2005 heard on Tuesday.

These can be removed after the event when temporary venues in London are taken away.

Removable oundations will be needed for temporary structures such as the beach volleyball grandstands at Horse Guards Parade, Roger Bullivant director John Patch told the Foundations for the Olympics seminar.

'Systems such as chance anchors, which literally screw into the ground, will really come into their own, ' he explained.

As these piles are driven into the ground, the drill bit becomes the reinforcement for the pile and grout is pumped around it.

A similar technique can also be used for ground anchors, which Patch explained would be needed to support flood defence walls and retaining walls on the Lea Valley Olympic site.

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