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T228 Garden By the Bay Station

Project Description

Bachy Soletanche Singapore scope of work for contract T228 involves the construction of an underground station, an underground Pedestrian subway, one Tunnel Boring Machine (TBM) launch shaft structure, one combined escape shaft, and a TBM retrieval shaft, twin bored tunnels, and associated utility and traffic diversions.

Project Information 

Diaphragm Wall: 900m, 0.8-1.2m thick, average depth 36m to 60m. Excavation:34,610m3, concrete: 34,295m3

Sheet Piles: Hat Pile system adopted as removable ERSS. 365m; average depth 21m

Bored Piles: 310nos, 1.5m-2.5mdia, depth 49m; max 80m, Excavation :62,232m3,concrete: 41,250m

Soil Improvement: 7m, 15m & 18m thick treatment, DSM Treatment Volume: 132,568m3


Land Transport Authority


Arup Singapore Pte Ltd.

General Contractor:

Nishimatsu – Bachy JV


2014; 2020

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