闭坑矿井积水对相邻生产矿井防治水的影响  

Influence of water accumulation in closed mine on water prevention and control in adjacent production mines

作　　者：许延春[1] 盖秋凯 黄磊[1] 禹云雷[2] 沈星宇 庞龙 XU Yanchun;GAI Qiukai;HUANG Lei;YU Yunlei;SHEN Xingyu;PANG Long(School of Energy and Mining Engineering,China University of Mining&Technology-Beijing,Beijing 100083,China;Shanghai Datun Energy Co.,Ltd.,Xuzhou 221611,China)

机构地区：[1]中国矿业大学(北京)能源与矿业学院,北京100083 [2]上海大屯能源股份有限公司,江苏徐州221611

出　　处：《煤炭科学技术》2020年第9期96-101,共6页Coal Science and Technology

基　　金：国家重点研发计划资助项目(2017YFC0804108);国家自然科学基金青年科学基金资助项目(51504095)。

摘　　要：为研究闭坑矿井积水对相邻生产矿井安全开采的影响,以三河尖煤矿闭坑为工程背景,采用理论分析、数值模拟等方法多角度评价了三河尖-姚桥煤矿井田边界隔水煤(岩)柱安全性;并通过分析井田边界可能成为导水通道的钻孔、地质构造研究了三河尖煤矿闭坑积水对姚桥矿西翼采区安全开采的影响。研究结果表明:姚桥矿距F_(19)断层留设了平面距离为160 m的煤(岩)柱宽度,可抵抗由于三河尖煤矿闭坑导致的顺煤层方向上的水压,危险位置剖面Ⅰ—Ⅴ在充水前后边界隔水煤(岩)柱宽度Ha均满足安全要求;封闭不良钻孔与陷落柱造成姚桥矿严重突水的可能性较低;边界断层整体富水性差、导水性弱,但在采掘活化后存在导水的可能性。分析认为:姚桥矿规划的7煤防水煤柱线位置合理,可实现姚桥西翼采区的安全开采,研究成果可为姚桥矿及类似条件下闭坑水害防治提供技术依据。In order to study the impact of closed mine water on the safe mining of adjacent production mines,with the closed pit of Sanhejian Coal Mine as the engineering background,theoretical analysis and numerical simulation and other methods were used to evaluate the anti-water coal at the boundary of Sanhejian-Yaoqiao Coal Mine from multiple angles.By analyzing the drilling of boreholes and geological structures that the boundary of the minefield may become a water channel,the influence of the closed mine water of Sanhejian Coal Mine on the safety of mining in the west wing of Yaoqiao Mine is studied.The research results show that Yaoqiao Mine has a coal(rock)pillar width of 160 m in plane distance from the F19 fault,which can resist the water pressure along the coal seam caused by the closure of the Sanhejian Coal Mine.The width(Ha)of the safety water-proof coal(rock)pillars before and after water filling meets the safety requirements;the badly sealed boreholes and collapsed pillars are less likely to cause serious water inrush in Yaoqiao Mine;the overall water content of the boundary fault is generally rich and water-conductivity is weak,but there is the possibility of water transfer after the excavation is activated.The analysis believes that the location of the No.7 coal waterproof pillar line planned by Yaoqiao Mine is reasonable,which can realize the safe mining of Yaoqiao west wing mining area,and the research results can provide technical basis for the prevention and control of closed mine water hazards in Yaoqiao Mine and similar conditions.

关 键 词：煤矿闭坑 矿井突水 煤柱评价 导水通道 

分 类 号：TD745[矿业工程—矿井通风与安全]