Sustainability Policy - Success Stories

The case studies below provide information on examples of successful sustainability within tunnelling projects.

Sustainability on Crossrail C310

A number of examples of sustainability from the Crossrail Thames Tunnel project.

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The re-use of dewatering at CTRL

The re-use of dewatering water extracted during the tunnelling for the Channel Tunnel Rail Link (CTRL).

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Construction of a ventilation shaft at CTRL

The construction of a ventilation shaft for the Channel Tunnel Rail Link (CTRL) from a confined site, adjacent to residential and business properties.

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Retention of spoil on site at PLUG

The spoil from the tunnels required for the Power Lines Undergrounding at the Olympic Park was tested and retained on site.

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Waste management on Harefield to Southall

Innovative backfill materials used around the tunnels and other initiatives led to a CEEQUAL Outstanding Achievement Award for waste management.

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Materials Management Plan at WELM

During the construction of the West East Link Main, a Materials Management Plan, agreed with the Environment Agency, permitted the re-use on site of 30,000 tonnes of excavated material.

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