Evaluation of a three-dimensional method of slope stability analysis
Evaluation of a three-dimensional method of slope stability analysis
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DOI：
10.1139/t89-079
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发表时间：
1989-11
影响因子：
3.6
通讯作者：
O. Hungr;F. Salgado;P. Byrne
中科院分区：
文献类型：
--
作者：
O. Hungr;F. Salgado;P. Byrne
将Bishop简化方法的三维扩展与其他极限平衡解进行了比较研究。在旋转和对称滑动面的情况下，例如椭球体，可以找到非常好的对应关系。毕晓普方法在应用于非旋转和非对称曲面时往往是保守的，因为它忽略了内部强度。然而，对于许多常见的滑动几何来说，误差是可以容忍的。提出了指数，以确定不应使用该方法的情况。定义了Bishop简化方法的局限性，为三维极限平衡分析提供了一种有用的算法。关键词：三维边坡稳定性分析。
A study comparing a three-dimensional extension of the Bishop simplified method with other limit equilibrium solutions is presented. Very good correspondence is found in cases of rotational and symmetric sliding surfaces, such as ellipsoids. The Bishop method tends to be conservative when applied to nonrotational and asymmetric surfaces because it neglects internal strength. The error is, however, tolerably small for many commonly occurring slide geometries. Indices are proposed to identify cases for which the method should not be used. With its limitations defined, the Bishop simplified method offers a useful algorithm for three-dimensional limit equilibrium analysis. Key words: three-dimensional slope stability analysis.