破碎残留矿体采矿方法研究  

Study on Mining Method of Residual Fractured Orebody

作　　者：孙光华[1,2] 陈稳[1,2] 胡建召 

机构地区：[1]河北联合大学矿业工程学院,河北唐山市063009 [2]河北省矿业开发与安全技术重点实验室,河北唐山市063009 [3]中核第四研究设计工程有限公司,河北石家庄050021

出　　处：《矿业研究与开发》2012年第3期6-7,61,共3页Mining Research and Development

摘　　要：针对刘店铁矿矿岩裂隙发育、破碎难采等特点,结合矿山开采现状和开采技术条件,设计采用垂直矿体走向的水平浅孔留矿采矿法开采各水平破碎残留矿体。该方法的使用降低了单位炸药消耗量;利用凿岩巷道钻凿水平浅孔,改善了采场作业环境;废石混入率降低了12.5%,矿石回收率提高了7%,对开采上盘围岩和矿体稳固性差的矿体具有借鉴和指导意义。In Liudian iron mine, fissure in the ore/rock is very developed, the ore- body is so broken, that is difficult to mine. According to the present situation and technical conditions of mining in the mine, it designed to use horizontal shallow shrink- age stoping with horizontal shallow hole to mine the residual frac- tured ore - body. By using this mining method, the specific charge was reduced, the work environment of stope was im- proved by drilling horizontal shallow hole in drill drift, the mixed rate of waste rock was decreased by 12.5% , and the recovery rate of ore was increased by 7%. The study proved a reference for the mining of unsteady ore - body with unsteady hanging wall rock.

关 键 词：矿岩稳固性 浅孔留矿法 水平浅孔 破碎残留矿体 

分 类 号：TD853.33[矿业工程—金属矿开采]