基于强度折减法的边坡安全系数求解及精度影响因子分析

The Calculation of Slope Safety Factor Based on Strength Reduction Method and Analysis of The Factors Affecting

本文介绍了FLAC3D中强度折减法的基本原理和边坡安全系数求解的实现过程,基于实例分析,从剪胀角、抗拉强度、网格疏密程度及边界范围四个方面探讨了这些因素对FLAC3D强度折减法计算结果的影响,为FLAC3D边坡稳定性分析中强度指标的选择提供理论依据。

This paper described the basic principle of strength reduction method and the solution of slope safety factor. The paper, based on example analysis, show the influence of four aspects, i.e. dilatancy angle, tensile strength, grid intensive degree and boundary range on results of FLAC3D strength reduction method, which provided theoretical basis for the selection of strength index in slope stability analysis.