排土场坐落-滑移式滑坡机理及数值模拟分析

Numerical Simulation and Mechanism of Dowm-Slip Landslide

针对新疆黑山露天煤矿外排土场局部滑坡现象,深入分析了坐落-滑移式边坡滑坡变形机理。根据该矿岩土物理力学指标,利用ANSYS软件,对典型的排土场剖面进行数值模拟,结果表明,该排土场物料堆积对采场边坡稳定性的影响较弱,上部排土场变形形式主要是基底不稳引起的顺层滑坡以及张拉作用引起的整体失稳。

Aiming at the local landslide in the outside dumping of Xinjiang Heishan coal mine, the mechanism of the dowm-slip landslide deformation is analyzed. According to the mine rock and soil physical and mechanical indexes, utilizing ANSYS software, the typical dump section was simulated. The results show that the dump material accumulation of stope slope stability influence is weak, the upper row soil field deformation is mainly caused by instability of basal bedding landsllde and the action of overall instability caused by the tension.