超大型采空区充填技术在铜陵有色矿山的应用

原狮子山铜矿东、西狮子山矿段采用崩落法及空场法开采,两矿段分别在2000年、2002年闭坑,均形成了通地表的超大采空区.东狮子山空区体积为1 570 175 m3;西狮子山空区体积为3 011 817m3,2个超大采空区一直没有得到处理,对矿山正常生产及周边环境造成了一定影响.采用尾砂充填方式对超大采空区进行处理,消除超大采空区存在所带来的安全隐患.

The Application of Filling Extra-large Mined-out Spaces Technology in Tongling Nonferrous Mines

Eastern and western mine sections oforiginal Shizishan Copper Mine used tobe explored bycavingstoping and open-stope mining.The twomine sections were closed in 2000 and 2002 respectively,and formed twoextra-large mined-out spaces near the surface.The eastern volume is 1 570 175m3 and the western volume is 3 011 817m3.These two mine sections remained untreated for a long time,hich causes certain impact on the normal mining production and the surrounding environment.The use of tailings in treating the above-s...