Hong Kong Mass Transit Tunnel

HEIGHT: 6.5 m
WIDTH: 13.1 m
TOTAL IMMERSED LENGTH: 1,400 m
DEPTH AT BOTTOM OF STRUCTURE: -24.24 m
ENVIRONMENTAL CONDITIONS: Currents of 1.5 m/s (2.9 knots). Several typhoons had to be contended with during construction. Tunnel was designed for 5 m tides.
FABRICATION METHOD: Casting basin cast in four batches.
immersed
Victoria Harbour, between Kowloon and Hong Kong Island,
Hong Kong
t59
Mass Transit Railway Corporation
Kumagai Gumi Co. Ltd. Tokyo, Japan
Main Consultant: Freeman Fox and Partners (Far East) Subconsultant: Per Hall Consultants Ltd M&E: Kennedy & Donkin (Far East) Architectural: Design Research Unit
100m
1,400m
24.24m

Project construction

1979-04-30
14
Two tubes; one track each
6.5m
13.1m
Semi-submersible; screeding and placing of elements using same jack-up rig; jacked-up
when screeding and semi-submersible during placement of element. Caisson ventilation
buildings set on end elements. All of the tunnel elements were constructed with a 2800
m. radius curve
Casting basin cast in four batches.
Currents of 1.5 m/s (2.9 knots). Several typhoons had to be contended with during
construction. Tunnel was designed for 5 m tides.
Used jack-up special marine platform.
Gina/Omega gasketted joints.
From the bottom to the first construction joint, 6 mm steel plate treated with corrosion
protection. The remainder was waterproofed with two-ply bituminous membrane.
Screeded bedding, using jack-up rig.
Reinforced
1.20