确定边坡临界滑面的电子表法

Application of spreadsheet to determining the critical failure surface of slopes

边坡临界滑面的确定是边坡稳定性分析的关键,对于非圆弧滑动的非均质边坡而言,已有的各种分析方法往往过于繁琐,不便于工程推广。本文基于传统的Sarma法,应用MicrosoftExcel电子表及其非线性规划求解工具,以实例给出了电子表法确定边坡临界滑面的实现方法。该法简便明了,具有较大的工程应用价值。

The key of analysis on slope stability is the determination of the critical failure surface. As for nonhomogeneous slopes sliding with noncircular failure surface, the existing methods are often too complex to extend in engineering. Based on the traditional method of Sarma,this paper provides a realizable method-spreadsheet method for determining the critical surface of slopes with an example.The method is proved to be brief and clear. It is worth being applied in geotechnical engineering. 