Behavior of pile rafts with raft size, number of piles and different pile length

Abstract

A foundation is the element of the construction, which is in direct connection with the ground that transfers the load of the construction to the ground. In this study, three-dimensional linear finite element investigations have been used to investigate the load-settlement behavior with the impact of the raft size and pile length of an axisymmetric raft and a piled raft foundation. The piles, raft, and soil have been discretized into Solid C3D8R 8-node linear brick element. Four case studies are performed in this research (the impact of raft size on the load-settlement performance of the raft foundation, the load-settlement performance of the raft and piled raft foundation were compared, the effective number of piles on the load-settlement behavior of the piled raft foundation, the effect of the length of piles on the load-settlement behavior of the piled raft foundation. The load-carrying ability of raft support is observed to develop with the improvement in the size of the raft. In this study, the finite element method is adopted through finite element package (ABAQUS 6.10) to evaluate the effect of many parameters on the load-settlement behavior of the raft and piled raft foundation in the clay soil.