摘要
青铜沟汞锑矿为充分开采井下资源,选择采用分段空场嗣后充填采矿法回采550~600 m中段的部分残矿体。残留矿体厚度中等,倾角不够陡,也不够缓,且550 m中段以上已开采形成大量空区和残留矿柱,使得残矿回采难度加大。在残矿回采研究中,根据数值模拟计算结果分析,采用垂直走向布置分段凿岩阶段出矿,分级尾砂充填的开采技术,使残留矿体回采获得了成功。
To fully exploit the resources,Qingtonggou Mercury-antimony Mine adopts the sublevel open stoping with delayed filling to recover the remanent ore-body at the medium stage of 550~600 m.The remanent ore-body has a medium thickness and not-steep slope.Moreover there are some mined-out area and the residual pillars above 550 m,resulting it difficult to recover the remanent ore-body.For research on the recovery of the remanent ore-body,and according to the numerical simulation results of calculation and analysis,the mining technology of the vertical sublevel drilling and sublevel tailings filling resulted in the successful recovery of the remanent ore-body.
出处
《金属矿山》
CAS
北大核心
2010年第8期15-17,共3页
Metal Mine
基金
西安建筑科技大学濮耐青年教育基金项目(编号:PN1004)
关键词
残留矿体
分段空场
采准切割
嗣后充填
Remanent ore-body
Sublevel open stoping
Mining-cutting
Back-filling
