ABSTRACT
At NCH, the ground consists of man-made fill, fluvial sands, fluvial clay and the Marine Clay of the Kallang formation, underlain by the Old Alluvium, as shown in Figure 2. The thickness of the fill is typically 3 to 6 meters. Underlying the fill is a layer of fluvial sand. Beneath this, it is the very soft to soft Marine Clay. The thickness of the sand layer is 3 to 7 m. The depth of the Marine Clay varies from 30 m to 40 m below ground level.
