义马煤业公司北露天煤矿拟引进澳大利亚螺旋钻机开采技术回收最终境界边坡下压煤 ,而到界边坡的稳定性问题是该技术能否应用的前提条件。运用有限元数值模拟方法 ,对北露天矿西部到界边坡的稳定性进行了分析 ,揭示了边坡的变形形态特征和变形机制 ,为进一步研究钻孔布置优化方案的设计提供了依据 The northern open-pit mine of Yima Coal Company intends to introduce Australia auger mining technology to recover the coal under the final state slope, and the stability issue to the boundary slope is a prerequisite for the application of the technology. The stability of the western open pit in the northern open pit mine is analyzed by finite element method. The morphological characteristics and deformation mechanism of the slope are revealed, which provides a basis for further study on the design of the optimal layout of drilling layout