ABSTRACT
Cone penetration tests with porewater pressure measurements (CPTU) are extensively adopted in Singapore due to the presence of soft soils from the young deposits of the Kallang Formation. The most prominent member of this formation is the soft Singapore marine clay, which can be present in thicknesses of up to 50m. Singapore is a relatively small island, and as such, over the past few decades has embarked on numerous reclamation projects to increase land to support their growing economy and population. Therefore, significant data in reclaimed land overlying soft deposits is available, especially in the east of Singapore. This has presented the opportunity to review the factors that influences Nkt in the marine clay located within this area. Nkt plays a significant role in the evaluation of the undrained shear strength (cu), which is often derived from site-specific calibrations. This paper summarizes the CPTU results carried out in reclaimed land to the east of Singapore. It discusses the calibration of Nkt with other site data, and proposes a range of Nkt to be adopted in this location.
