ABSTRACT

The Clarke Quay mass rapid transit station is being constructed under Contract 708 of the Singapore North East Line. An alternative scheme to lower the Clarke Quay station by 4.4 m, thus creating an additional basement above the station was accepted by the Owner. The lowering of the station obviated the need for a 4-stage cut and cover tunnel construction across the Singapore River and also made it feasible to use a raft foundation for supporting the station and future development loads. This paper presents the geotechnical design and construction aspects of the station and selected monitoring results.