Contract 908 consists of Telok Ayer Station (180m) and running tunnels (275m) between Telok Ayer Station and Landmark Station which are located in principal route in the CBD. The construction was expected to worsen traffic congestion at peak hours. To mitigate it, 500m long temporary vehicular viaduct along Cross St. was constructed successfully by two shift (day and night) schedules to meet LTA’s need and reduce stakeholder’s inconvenience.
Diaphragm Wall: Surface area; 33,000m2. 0.8/1.0 & 1.2m thickness; Average depth 35m; maximum 45m
Bored Piles: 127nos. 1200mm Dia; 5,660m of drilling; 6,250m3 of concrete; Average depth 45m
Jet Grouting: 2 nos. 350 columns (1200 & 1600 mm diam); 8,850m of drilling
Micro-tunneling: Protection of the East West line in operation for a section of 10m x 15m.