内蒙古苏尼特右旗毕力赫金矿无底柱分段崩落法覆盖层形成分析

摘要

如何回收露天开采境界以外剩余的挂帮矿是目前露天转地下矿山开采的一个主要难题,针对这一难题,本文论述了内蒙古苏尼特金曦黄金矿业有限责任公司毕力赫金矿区Ⅱ号矿带挂帮矿回收所采用的无底柱分段崩落法,其重点论述露天挂帮矿所采用的无底柱分段崩落法覆盖层的形成方法.该覆盖层形成方法对露天转地下矿山具有一定的参考价值.%How to recycling open-pit boundary remaining hanging wall ore is currently one main mining problem of open-pit mine into underground mine,in order to solve this problems,this paper discusses pillarless sublevel caving method for recycling of BiliheⅡ ore belt open-pit boundary remaining hanging wall ore of Sunid Jinxi Gold Mining Co.,Ltd.,it mainly discusses how to form overburden of pillarless sublevel caving method to recycling hanging wall ore.The method of forming overburden formation has some certain reference value for open-pit mine into underground mine.