基于强度折减法的边坡稳定性数值分析

Numerical Analysis of Slope Stability Based on Strength Reduction Method

针对在边坡稳定性分析评价过程中存在定量评价困难的问题,文章以新疆黑山露天煤矿一典型边坡为研究对象,运用数值分析的手段对次边坡进行了稳定性分析,探究了边坡的位移变形情况,基于Hoek-Brown准则和强度折减法计算了边坡的安全系数,根据计算结果推测出了边坡潜在滑移面及整个变形破坏的发展规律。

In view of the difficulty of quantitative evaluation in the process of slope stability analysis and evaluation, this paper takes a typical slope of Heishan open pit coal mine in Xinjiang as the research object, analyzes the stability of the secondary slope by means of numerical analysis, explores the displacement and deformation of the slope, calculates the safety factor of the slope based on Hoek-Brown strength criterion and strength reduction method, and infers the safety factor. According to the calculation results, the development law of the potential slip surface and the whole deformation and failure of the slope is given.