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Foundation work under way on Hong Kong corridor

CONTRACTS

FOUNDATION construction has begun on the Hong Kong section of the Hong Kong-Shenzhen Western Corridor.

Gammon Skanska and Skanska, with Zhongtie Major Bridge Engineering, won the US$282M (£157.5M) contract to build the 3km section of viaduct and 460m long cable-stayed bridge.

Shallow waters required a 1.8km long and 9m wide temporary access platform to be built to carry piling and bridge erection equipment.

An innovative platform design, developed by in-house consultant Lambeth Associates, uses prefabricated elements for rapid construction.

The temporary structure is supported on more than 1,000, 0.8m diameter tubular steel piles. In the deeper water, permanent piles are being installed from floating platforms.

The viaduct and cable-stayed bridge will be supported on more than 400 large diameter (between 1.8m and 2m) bored piles bearing on to the bedrock. Some piles will be up to 100m long.

Gammon Skanska is working to a 'challenging programme' of 15 months to complete foundation work.

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