Tuen Mun – Chek Lap Kok Tunnel

The biggest TBM ever built operating in Hong Kong

Underground Works

HongKong, 2013-2018

General description

Within the scope of the Tuen Mun-Chek Lap Kok project, teams from Dragages Hong Kong and Bouygues Travaux Publics are carrying out construction of a sub-sea twin-tube tunnel (tunnel made up of two tubes), 50 metres below the sea, 4.2 km long, to link the New Territories, to the north of Hong Kong, to the island of Lantau, site of the international airport. One specific aspect of the project is that, with its 17.6-m diameter, the earth pressure balance TBM being used is the biggest ever built – establishing a new world record.

 Carried out in full respect of stringent environmental standards where marine ecology, water quality, noise pollution and waste management are concerned, the worksite also comprises two tunnel accesses, 530 and 670 metres in length, built using the cut & cover technique.

 

Consortium

DRAGAGES HONG KONG ; BOUYGUES TRAVAUX PUBLICS EXPLOITATION INTERNATIONALE

Project owner

HONG KONG GOVERNMENT

Locations

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