Floating Raft-Pile Foundations Analysis Using Numerical Simulation

Abstract

The numerical simulation of raft-pile foundations subjected to vertical load is presented in this paper. For comparison study, numerical models of single raft and pile groups are completed. The numerical models are adopting the elastic constitutive law for the materials. The stresses and
 vertical displacement of the models are observed. The behaviour of the raft-pile foundation compared to the pile-group is then investigated. The results using the same external load show that the raft-pile foundation has smallest displacement compared to the others. In terms of stresses, the
 raft shows contribution of the load transfer to the underneath soil as well as the piles. Moreover, the behaviour of the raft-pile system appears to be a combination of the pile-group and the single raft. In order to estimate the bearing capacity of the raft-pile system, it is suggested that the contribution of the raft should be included in addition of the piles’.
 
 Keywords: raft-pile foundation, soil-structure interaction, floating foundation

Bearing Capacity of Floating Foundations Used PVC (Poly Vinyl Chloride) on Soft Soil With The Scale Model in the Field

“…The carrying capacity of the soil should be capable of picking up the load to keep it stable. In planning the foundation of the large load building on the ground with has a low carrying capacity, it can be used the raft foundation [8] which is the foundation of a square foot made on the soft soil and seem to float like a raft. In general, the raft foundation can be supported by piles, forming a raft-pile foundation on the soft soil [9].…”