Deformation Mechanism Analysis of Mining Landslide Based on Three-dimensional Numerical Simulation
In areas rich in deep coal resources,mining landslide is a special geological disaster different from ordinary landslide,which is often caused by coal seam mining.Taking the mining landslide as an ex-ample,a three-dimensional model is established to discuss the deformation mechanism of mining landslide.The research shows that:As the"starting factor"of mining landslide,the goaf mainly causes the change of slope stress and induces slope sliding.In the analysis of mining landslide deformation mechanism,it is rea-sonable to divide the toppling crack area.The existence of toppling crack is the key factor that causes the distribution range of surface displacement far beyond the mining range of coal seam and promotes the devel-opment of slope cracks.In the future treatment and prevention work of mining landslide,we should pay at-tention to the deformation analysis of goaf and formulate relevant targeted treatment measures,so as not to blindly treat landslide and ignore the problem of goaf.
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