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One step at a time

SITE INVESTIGATION CONTRACTS

A PILING contract near a sea wall at Dover's Western Docks is complicated by the fact that the back face of the wall is stepped at its base.

May Gurney Site Investigation had to locate the bottom step of the masonry wall before piling for an extension to an elevated roadway could begin.

The piles will be extended through the Goodwin Sands and into the underlying chalk.

Ground probing radar gave some indication of the wall's location, although its exact dimensions are not known.

A Geotool probing rig was used through trenches dug perpendicular to the sea wall at 1m intervals to establish the exact profile, depth and lateral extent of the back wall. The piling layout is now being designed to avoid the bottom step.

This is the firm's second such project this year. In April there were similar concerns regarding quay walls in Great Yarmouth, Norfolk.

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