Settlement Analysis of Piled Raft Foundation System (PRFS) in Soft Clay

Abstract

The piled raft foundation allows the high load bearing capacity and reduces the settlements in soils at very economic way as compared with the conventional foundation designs. This paper presents combinations of 3-D numerical analysis (by Plaxis 3D Foundation v 1.1) of piled raft foundation on clayey soil to investigate the behaviour of piled raft system in soils under different loading conditions. The settlement was measured at the centre of the models of pile raft with (single, two, three & four) piles. Finally, the behaviour of piled raft foundation w.r.t effect of number of piles, spacing between piles, elastic of modulus and raft size on the load carrying capacity of piled raft foundation system (PRFS) are assessed and conclusions are made.