摘要
利用有限差分法,使用FLAC数值模拟软件来分析边坡稳定性。通过强度折减,当折减系数达到某一数值时,系统达到不稳定状态,边坡内一定幅值的总等效剪应变自坡底向坡顶贯通,认为边坡破坏。结合露天矿边坡实例,FLAC程序通过不断降低土体抗剪强度参数,使边坡达到破坏状态得到破坏滑动面,从而表明FLAC强度折减法适用于露天矿开挖边坡的稳定性分析。
With the finite difference method, an analysis on slope stability by FLAC numerical simulation is presented. When the reduction factor achieves some value, the system reaches instability, the equivalent shearing penetrates from the base to the top of slope, a well defined failure shear stain zone is formed in the slope. According to the example of the open-pit, reducing the soil shearing strength parameter continuously, the destruction sliding surface is obtained by FLAC, it is believed that the FLAC shear reduction method can be applied in the open-pit slope stability analysis.
出处
《露天采矿技术》
CAS
2008年第5期1-4,共4页
Opencast Mining Technology
关键词
边坡稳定性分析
强度折减法
FLAC
数值模拟
slope stability analysis
strength reduction technique
FLAC
numerical simulation
