MTRC Completed Tunnels

Hong kong, Hong Kong
HEIGHT: 7.57 m
WIDTH: 12.42 m
TOTAL IMMERSED LENGTH: 1260 m
DEPTH AT BOTTOM OF STRUCTURE: 28 m
ENVIRONMENTAL CONDITIONS:
Sheltered channel 1 m/s tidal current.
FABRICATION METHOD:
Precast in dry dock casting basin. One element
fabricated with batch 3 of Western Harbour Crossing,
remainder in adjacent basin.
t97
t97-mtrc
Mass Transit Railway Corporation, Hong Kong
Kumagai Tarmac Joint Venture
Acer Consultants F. E. Ltd.
126m
1260m
28m
1997-05-01
10
Two tubes, one track each
7.57m
12.42m
Curved to radius of 850 m; longitudinally post-tensioned
Precast in dry dock casting basin. One element
fabricated with batch 3 of Western Harbour Crossing,
remainder in adjacent basin.
Sheltered channel 1 m/s tidal current.
FABRICATION METHOD:
Floated, immersed from sinking pontoons
Gina gasket hydrostatic joints with
secondary Omega seal. Offshore closure made with final
element.
Steel plate on underside, spray-on membrane on sides and roof
Sand bedding injected via pipes cast into central wall
Reclamation at northern landfall, rock armouring generally