ABSTRACT
This paper presents the result of a finite element method to evaluate the effectiveness of the partial floating steel sheet piling method (PFS method) for the stability of embankment on two-layered soft ground. In order to clarify a suitable ground layer structure for the PFS method, ground is assumed to consist of a sand layer as a surface layer and a clay layer as a bottom layer, and the settlement and the lateral displacement of soft ground due to the construction of an embankment are investigated changing the thickness ratios of sand and clay layers. In addition, the effect of the length of a floating sheet pile of the PFS method is investigated on the ground deformation under different ground layer structures. Finally, suitable ground layer structures for the PFS method and the minimum length of floating sheet piles are discussed to reduce the lateral displacement of soft ground.
