露井联合开采条件下矿山边坡运动损害规律研究

露井联合开采时,采动效应会综合叠加,矿山边坡将受到数个应力场作用,复合采动影响下的边坡岩体的滑移机制与变形规律会更加复杂。以安太堡露天矿露井联合开采影响边坡为研究对象,利用数值模拟的方法研究了该露天矿东帮边坡在露井联合开采影响下不同开采进度时,边坡岩体的运动规律、地下开采上覆岩体的损害机制,从而系统地归纳出安太堡露天矿露井联合开采影响边坡可能发生的破坏模式,为采区安全生产提供了科学指导。

Study on Movement and Damage Law of Pit Slope under Condition of Combined Mining of an Open-pit Mine

Under the condition of combined mining of an open-pit mine, mining effect will be integrally superposed, mining slope will be subjected to the action of several induced stress fields, the sliding mechanism and deformation law of slope rock mass will become more and more complicated. In this paper, we aim at the east slope of Antaibao Open-pit Mine as the research object, which is extracted in combination with underground mining. This paper studied the moving law of the slope rock mass and the damage mechanism to the overburden of the goaf by numerical simulation. The study results are in favor of systematically summing up the model that maybe broken to slope and offering the scientific guidance to the safe production of the mine.