摘要
采用Mohr-Coulomb等面积圆屈服准则和有限元强度折减系数法分析某工程深基坑复合边坡的稳定问题, 提出了在平面应变条件下有限元分析模型的选取、边界条件的处理方法、收敛条件, 以及采用大型通用软件ANSYS分析边坡稳定时c、φ值的替换原则; 计算出该工程边坡的安全系数为 1 718. 该方法收敛性较好, 计算结果稳定性好.
The stability problem of some deep foundation pit is analyzed by Mohr-Coulomb equivalent area circle yield criterion and strength reduction by FEM. The selection of FEM model under plane strain condition, disposal of boundary conditions and convergence condition are introduced in this paper.The transformation method of the values of c and φ is shown for analyzing stability problem with the large common software-ANSYS.The safty factor of the slope in the method mentioned in this paper is 1.718.The methods have reference value for researchers and constructors.The convergence of this method is satisfactory.The stability of the calculation results is reliable,too.
出处
《桂林工学院学报》
CAS
北大核心
2005年第1期47-49,共3页
Journal of Guilin University of Technology
基金
广西自然科学基金资助项目 (桂科自 0339017)
