露天-井工联采边坡井工与边坡合理位置的数值模拟研究

The numerical simulation study on the reasonable distance between the open pit slope and mine

本文采用数值计算方法,对露天-井工联采情况下边坡的稳定性进行了研究。在先露天后井工的开采条件下,研究了井工开采对露天边坡稳定性的影响过程。露天边坡稳定性的判断,综合考虑了工作面与边坡之间承载煤柱的稳定性、边坡以及围岩的破坏状况、边坡台阶监测点的位移速度变化,最终给出了井工与边坡之间的合理距离,确保露天边坡的整体稳定性。计算结果与现场情况基本吻合。

The presented article employs numerical simulation to analyze the stability of the open pit slope when mining in the open pit slope and mine. The influence process on the stability of the open pit slope is researched when opening in the open pit slope firstly and in the mining secondly. The stability of the open pit slope is evaluated by the stability of the coal pile between slope and work face, the failure condition in rocks and the displacement and velocity of the track points. The reasonable distance between the slope and the work face is given. The result is same to the fact.