The cylindrical expansion combining with spatial axisymmetrical consolidation finite element method and modified Cam-clay model, is adopted to simulate pile driving.

• 采用空间轴对称固结有限元结合修正剑桥模型,用柱形孔扩张对沉桩过程进行模拟,求出不同时期桩周土中的应力,从而得到不同间歇期桩侧的最大摩擦力。