摘要
介绍了3种基于极限平衡理论边坡稳定分析方法的基本原理,并利用SLOPE/W程序对某露天矿边坡典型勘探线剖面在当前开采境界和计划开采境界下进行了稳定性分析。通过分析计算,获得了分别采用Bishop法、Janbu法和Sarma法在自然状态、考虑水和地震作用3种工况下边坡安全系数。分析结果表明:当前开采境界下,边坡处于稳定状态;计划开采境界下,边坡处于非稳定状态,不可按原计划进行开采;水和地震的作用将对边坡稳定性产生重要的影响。
The basic principles of three kinds of slope stability analysis methods based on limit equilibrium theory are described. The stability of typical prospecting line section of a slope of an open pit mine at current and planned mining boundary using SLOPE/W is analyzed. Through analysis and calculation, the slope safety coefficients considering natural state, water and earthquake effects are gained by Bishop method, Janbu method and Sarma method. The results indicate that the slope is stable at current mining boundary; the slope is unstable at planned mining boundary and the mining plan needs change. Water and earthquake have important effects on slope stability.
出处
《现代矿业》
CAS
2009年第10期55-57,116,共4页
Modern Mining
