针对Ⅱ型露井联采,露天转地下开采的情况,对井采影响下边坡岩体变形机制、地表移动特征及其对边坡岩体强度的弱化等进行了探讨。安家岭露天矿西排土场北部变形区实例分析表明,受井采影响,边坡上部土体由于沉陷变形出现差异性拉张裂隙,形成主动下沉滑移段,前缘被动段以沿弱层滑移的水平位移为主,数值模拟结果与现场实际基本吻合。 Aiming at the situation of type Ⅱ open pit mining and open pit mining, the deformation mechanism and surface movement characteristics of rock mass under slope influence and weakening of slope rock mass are discussed. The analysis of the deformation of the northern tailings in the Anjialing surface mine shows that due to the influence of the well excavation, the upper part of the slope shows differential subsidence due to the subsidence deformation and forms the active sinking slip section. The passive section of the leading edge is weakly weak The horizontal displacement of layer slippage is dominant, and the numerical simulation results are in good agreement with the actual field conditions.