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Lundy landing Sprayed concrete retaining walls are helping engineers on the remote island of Lundy overcome serious logistical problems. Report and photographs by Andrew Bolton.

Some might say that using structural sprayed concrete is a risky business given its association with the Heathrow Express tunnelling collapse in 1994. The material was used to support the vast underground excavation which failed at the centre of the airport (NCE 27 October 1994). The technique is expected to come under the spotlight when the Health & Safety Executive launches its prosecution of HEX contractor Balfour Beatty in October.

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