摘要
针对基坑计算中存在的问题,分析工程桩的存在时基坑的变形性状,并与不考虑工程桩的存在时的计算结果作比较.考虑到用三维方法计算量非常大,笔者采用平面有限元法.采用轴向刚度等效的方法模拟基坑内存在的工程桩,有限元分析表明,工程桩的存在对基坑变形和支护结构内力产生影响.对深基坑工程中工程桩对基坑变形、周围土体应力场和位移场的影响做较为深入的对比分析.
Based on the problems in the analysis of excavation, deep excavation is analyzed considering foundation piles in retaining wall. And deformation behavior is compared with the behavior without foundation piles. Since 3 - D analysis takes too much calculation, 2 - D FEM is adopted. The method of equivalent axial stiffness is adopted to simulate foundation piles. The influence of foundation piles is analyzed deeply. FEM results show that the influence of foundation piles is obvious on the foundation pit deformation and internal force of strutted structure.
出处
《昆明理工大学学报（理工版）》
2006年第5期56-60,共5页
Journal of Kunming University of Science and Technology(Natural Science Edition)
关键词
深基坑
变形性状
工程桩
有限元法
deep excavation
deformation behavior
foundation pile
finite element method
