摘要
采用轴对称有限元法编制的分析程序,对大直径桩的荷载传递性状进行了弹塑性分析。程序中土的本构关系采用Drucker-Prager弹塑性模型,桩-土界面采用接触面单元。通过对程序分析得到的P-s曲线与实测曲线比较,可知二者非常接近,从而验证了本方法及所编制的有限元程序的可靠性和实用性。
A FEM program has been made by using axisymmetric method to analyze the rule of load transfer for large-diameter piles. In the program, Drucker-Prager elastic-plastic model is adopted to present soil＇s constitutive law and pile-soil interface is assumed to be interface element. Comparison is made between the results obtained by the proposed method and the test data and close agreement has been found, thus, the accuracy and the reliability of the proposed method and program are verified.
出处
《株洲工学院学报》
2005年第6期6-9,共4页
Journal of Zhuzhou Institute of Technology
基金
国家自然科学基金资助项目(50378097)
湖南省自然科学基金资助项目(01JJY3043)
关键词
有限单元法
大直径桩
荷载传递
弹塑性模型
FEM method
large-diameter pile
load transfer, elastic-plastic model
