水平承载大直径管桩工作性状的有限元研究  

Research on Performance of Laterally Loaded Large-diameter Pipe Piles Based on Finite Element Analysis

作　　者：李志明[1] 汪宏[1] 俞铭华[1] 

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003

出　　处：《江苏科技大学学报（自然科学版）》2007年第1期21-25,共5页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：江苏省教委自然科研基金课题资助(2KJD560001)

摘　　要：为了进一步了解大直径管桩在水平力作用下的工作性状,文中基于有限元方法对水平承载桩的受力变形进行了模拟分析,考虑到土体的非线性因素以及桩-土界面的接触特性,引入了界面接触单元,利用惩罚函数的算法对其工作性状进行了综合分析,并分析了在分级加载作用下的桩身内力的分布模式和变化规律。To reveal the performance of the large-diameter pipe piles under lateral loads, the nonlinear behavior of soil as well as the contact behavior of the pile-soil system are considered. A calculation model is established by means of the finite element method with the contact elements introduced. By using the penalty function, there is a comprehensive analysis on the working behavior of pile-system. The distribution of internal forces and the alteration pattern of the pile under gradual loads are also analyzed.

关 键 词：管桩 水平力 有限元 接触单元 惩罚函数 

分 类 号：U656.1[交通运输工程—港口、海岸及近海工程]