小煤柱开采在提高资源回收率中的应用探讨  

Application of Small Coal Pillar Mining in Improving Resource Recovery Rate

作　　者：李世斌 Li Shibin(Production Dept.of No.5 Colliery,Yangquan Coal Industry Group Co.,Ltd.,Yangquan,Shanxi 045209)

机构地区：[1]山西省阳煤集团五矿生产部,山西阳泉045209

出　　处：《江西煤炭科技》2018年第1期34-35,共2页Jiangxi Coal Science & Technology

摘　　要：五矿目前采区回采率偏低,仅75%左右。为提高采区回采率,在8407工作面推广小煤柱开采。经方案比较采空侧巷道留设10 m煤柱,其支护强度符合小煤柱沿空掘巷要求、经济合理。At present,the recovery rate of minmetals is low,only about 75%.In order to improve the recovery rate of mining area,small pillar mining was promoted at 8407 working face.It is proposed that 10 m coal pillar should be set in the open side roadway,and its supporting strength is in accordance with the requirements of small coal pillar along the air excavation roadway and economic rationality.

关 键 词：回采率 小煤柱 地质条件复杂 

分 类 号：TD822.3[矿业工程—煤矿开采]