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CONTRACTS

CONTRACTS

A hydraulic barrier and drain system has been installed to protect an environmentally sensitive watercourse from landfill contamination in the south west of England.

Restricted access ruled out using a wide-benched excavation and the installation of slotted pipes prevented a slurry wall solution.

Keller Ground Engineering supported the 90m long trench with a biodegradable slurry while a high density polyethylene membrane, a 450mm diameter slotted pipe and gravel infill were installed.

Geofabrics' Protexia FmF, a thick geotextile protector, was bonded to both sides of the membrane to give puncture protection during installation and while in service.

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