Abstract
This paper presents a method of analysis for piled raft foundations on layered soils. The method combines both the finite element method for analysis of rafts and the finite layer method for analysis of soil-pile groups. This means that rafts of any shape that are subjected to point or uniform loads or moments may be analysed. As well, the soil may consist of layers of different stiffnesses or have a stiffness that increases with depth. Deflections of the piles and raft as well as the forces in the piles and moments in the raft may be computed. Several case studies that include a centrifuge model and full scale field tests for piled raft foundations are examined in this paper. The comparisons between calculated values and measured ones show that the method can be used successfully for analysis of piled raft systems in layered soils.
