标题：Numerical analysis of long-short-pile composite foundation with cushion or no cushion
作者：Sun, Luyuan ;Han, Zhijun ;Bai, Xiaohong
作者机构：[Sun, Luyuan ;Han, Zhijun ] Department of Mechanics, Taiyuan University of Technology, Taiyuan 030024, China;[Bai, Xiaohong ] Institute of Architectur 更多
会议名称：2011 International Conference on Civil Engineering and Transportation, ICCET 2011
会议日期：October 14, 2010 - October 16, 2010
来源：Applied Mechanics and Materials
摘要：With the Drucker-Prager yield criterion, the ANSYS software is used to analyze the long-short-pile composite foundation by using three-dimensional nonlinear finite element method. The influences of load on axial stress and maximal axial stress of head of pile with cushion or not have been investigated by simulating composite foundation through nine long piles and sixteen short piles. The result indicates the cushion can reduce the stress concentration in head of pile effectively with increase of load. This conclusion has a certain value for engineering. © (2011) Trans Tech Publications, Switzerland.