Design Charts of Piled Raft Foundations On Soft Clay

For the structure foundation under the soft clay layer conditions, the design charts are first presented for the evaluation of both bearing capacity and total settlement in the raft alone foundation system. Loadsettlement relationship curves are used to evaluate the ultimate soilbearing capacity. The total settlement is evaluated by applying various traditional safety factors of the uniformly distributed loads. Then, the parametric studies are carried out for the piled raft foundation system. In the numerical analyses, elasto-plastic finite elements models are used to present the foundation response and the design charts, which enable the determination of the raft size and pile length and spacing if piles are available.