有限元方法仿真承载桩对其周围土体的影响

Simulation of Variation of Soil Around Piles by Finite Element Method

用有限元方法仿真承载桩在打入地下过程中，对其周围土体的影响．用ＤＰ材料来模拟土体，用 ＤＰ准则为判据，在受力区外围采用无限元模型，以ＡＮＳＹＳ有限元分析软件为工具，以动画方式给出了承载桩在打入过程中，桩体周围土体应力、应变及变形的情况，给出了一种预测土体变化的有效方法．

This paper gives a method to simulate the variation of soil around the piles that are being struck into the earth. The soil was supposed as DP material and DP yield criterion was adept, by means of FEM software ANSYS, the distribution of deformation, stress and strain of soil around the pile were shown in animate way, we provide a way to predict variation of soil, the results can be treated as reference to solve relative problems.