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在对有限元强度折减法和有限元迭代解法的优缺点分析的基础上,提出了边坡稳定分析的非线性有限元混合解法,该法将有限元强度折减法和有限元迭代解法联合运用于边坡稳定分析,充分利用了两种方法的优点。即由有限元强度折减法搜索边坡可能滑动面,将可能滑动面在网格中画出,由迭代解法逐步迭代求得其滑动面的安全系数。并以算例和工程实例说明了此种方法的正确性和合理性。
Based on the analysis of the strengths and weaknesses of the finite element strength reduction method and the finite element iterative method, a nonlinear finite element hybrid solution to the slope stability analysis is proposed, which combines the finite element strength reduction method and the finite element iterative method Slope stability analysis, take full advantage of the advantages of the two methods. That is, the potential sliding surface of the slope is searched by the strength reduction method of finite element method, the possible sliding surface is drawn in the grid, and the safety coefficient of the sliding surface is obtained by the iterative method. An example and a project example are given to illustrate the correctness and rationality of this method.