The positioning and thickness effect for soft clay layer on 3D-building resting on piled raft

The effect of both of the positioning and the thickness of soft clay layer on 3D-building resting on piled raft has not received much attention. Herein, a computer program ASTNII is developed by the author in order to examine the behavior of a layer of soft clay with different hypothetical positions and thicknesses. Composed coefficient technique is employed in ASTNII to save time. Many cases of different positions and thicknesses are diagnosed to cover practical cases. Based on finite element method, ASTNII is used to analyze three dimensional buildings on piled raft in a parametric study. That study is developed to include two different structural models of square and rectangular shapes. Different cases are analyzed to reflect the effect of changing of both of position and thickness of soft clay on the system. Discussions on the numerical results are performed and conclusions are drawn.