复杂地基应力和稳定非线性分析的不连续位移法

Displacement Discontinuity Method for Non-linear Analysis of Stress and Stability of Complex Foundation

以间接边界元法的不连续位移法为基础，采用符合Ｍｏｈｒ－Ｃｏｕｌｏｍｂ屈服准则的节理单元来模拟软弱夹层，给出了按增量常刚度迭代格式及其加速算法进行非线性分析的方法，讨论了在复杂地基应力分析和坝基深层稳定分析中的应用．理论研究和实际计算表明本文方法简单有效，收敛速度快，计算省时，是分析这类问题的一种好方法．

ased on the displacement discontinuity method in indirect BEM , this paper establishes a non-linear analysis approach for the problems of weak joints modeled joint elements witli cohesion and friction by using the accelerated iteration method of incremental constant stiffness , and then discusses the application of this approach in the analysis of stress and stability of complex foundation, The result shows that the approach can quicken the convergence and computing speed and is a rational numerical method for such problems.