关键层对采动边坡变形破坏的控制作用

Control Effect of Key Layer on Deformation and Failure of Mining Slope

在实施露井协采的边坡中,关键层对井工开采形成的采空区上覆岩层及露天边坡部分的岩层起控制作用,关键层的变形和受力将影响到露天矿边坡的稳定。以安太堡露天矿为列,采用LS-DYNA数值模拟的方法,分析了关键层对边坡稳定性的控制作用。

In the slope of carrying out the coproduction of open-pit and underground mining,the key layer plays control role on the goaf overburden of underground mining and slope rock in open-pit mining,the deformation and stress of the key layer will affect the stability of open-pit mine slope. Taking Antaibao opencast mine as an example, by using the numerical simulation method LS-DYNA, analyze the control effect of key stratum on slope stability.