龙泉矿承压水下工作面带压开采安全评价  

Safety evaluation of mining under pressure in confined underwater face of Longquan mine

作　　者：弓远程 GONG Yuancheng(Taiyuan Coal Gasification(Group)Co.,Ltd.,Taiyuan030032,China)

机构地区：[1]太原煤炭气化(集团)有限责任公司,山西太原030032

出　　处：《煤矿现代化》2021年第3期58-61,共4页Coal Mine Modernization

摘　　要：针对龙泉煤矿7、9号煤层处于带压开采状态,可能存在底板突水风险,采用理论分析和现场相结合针对带压开采进行了安全评价。得到井田内奥灰水位标高1123.95~1129.46 m,7号煤层底板隔水层厚度平均90.07 m,9号煤层底板隔水层厚度平均57.67 m;隔水层相互叠置组成的地层结构,具有很好的隔水性能及抗突水能力;并采用突水系数法针对7、9号煤层工作面进行了分区,得到了带压开采相对安全区和危险区的分布位置。In Longquan coal mine,No.7 and No.9 coal seams are in the state of mining under pressure,and there may be the risk of floor water inrush.The results show that the elevation of Ordovician limestone water level is 1123.95~1129.46m,the average thickness of aquiclude in No.7 coal seam is 90.07m,and the average thickness of aquiclude in No.9 coal seam is 57.67m;the strata structure composed of aquiclude overlaps with each other,which has good water resisting performance and anti water inrush ability;the working face of No.7 and No.9 coal seam is divided by water inrush coefficient method,and the relative safety zone and safety zone of mining under pressure are obtained The location of the danger zone.

关 键 词：承压水 带压开采 安全评价 

分 类 号：TD823[矿业工程—煤矿开采]