基于采矿环境再造的缓倾斜极薄矿体残留矿柱回采技术及应用  

Technology to recover pillars remaining from gently inclined extremely thin ore body extraction based on mining environment reengineering and its application

作　　者：侯国权 叶尔江·多力达西 郭利杰 崔松 陈新[4] Hou Guoquan;Yeerjiang Duolidaxi;Guo Lijie;Cui Song;Chen Xin(BGRIMM Technology Group;National Center for International Joint Research on Green Metal Mining;Altay Regional Emergency Management Bureau;School of Resources and Safety Engineering,Central South University)

机构地区：[1]矿冶科技集团有限公司,北京市102628 [2]国家金属矿绿色开采国际联合研究中心 [3]阿勒泰地区应急管理局 [4]中南大学资源与安全工程学院

出　　处：《黄金》2021年第10期35-37,42,共4页Gold

基　　金：国家重点研发计划项目(2017YFE0107000)。

摘　　要：某钨矿采用全面采矿法开采,造成大量矿柱资源难以有效回收。提出利用采矿环境再造技术进行点柱回采。根据矿山采空区点柱的赋存情况划分矿块,在底部结构及矿块边界位置施工充填挡墙,整体充填采空区,改变采空区应力状态。充填体养护期达到要求后,从底柱位置先开挖充填体,遇到矿柱时,依旧按照切割上山的规格掘进,直到切割上山和上中段巷道贯通后,再以后退式对未回采完的矿柱进行刷帮回收,取得了较好的矿柱资源回收效果。A tungsten mine uses breast stoping method,leaving a large amount of pillar resources that are difficult to recover.In light of that,the paper proposed mining environment reengineering technology to recover point pillar.Based on the occurrence status of point pillar in goafs,the ore blocks are divided,retaining walls are constructed at the bottom structure and ore block boundary to fill the goaf as a whole and change the stress status of the goaf.When the curing period of the filling body is due,the filling body is first excavated from the bottom pillar position.If the ore pillar is encountered,the excavation still conforms to the standards of cut uphill until the cut uphill is through with the upper middle section roadway and the ore pillars yet to recover are recovered by wall brushing in retreat ways.The technology has achieved good effect of ore pillar recovery.

关 键 词：采矿环境再造 矿柱回采 采空区 充填体 资源回收 

分 类 号：TD853[矿业工程—金属矿开采]