济宁二号煤矿十采区隔水煤柱安全性评价  

Safety Evaluation of Impermeable Pillar in Tenth Mining Section in Jining No.2 Coal Mine

作　　者：阴静慧[1] 李文平[1] 郭启明[1] 林玉祥[1] 孙尚尚 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221116

出　　处：《煤炭技术》2017年第4期169-171,共3页Coal Technology

基　　金：国家自然科学基金重点项目(41430643)

摘　　要：为了解决济宁二号煤矿十采区开采邻近采空区积水突水隐患问题,基于采区地质、水文地质条件,采用理论计算和数值模拟方法对煤层开采隔水煤柱破坏深度进行了理论计算和过程模拟分析,在此基础上,结合规范中经验公式对十采区与邻近十一采区间隔水煤柱稳定性进行综合分析评价。研究结果表明:按《煤矿防治水规定》采区间隔水煤柱尺寸略小于安全隔水煤柱临界值,存在发生十一采区老空水涌突的可能性,必须在十采区开采前对十一采区积水实施控压疏放,控制水压不大于0.4 MPa。该研究成果为十采区开采老空区水害防治提供了基础依据。In order to solve the potential goaf water inrush hazards in the tenth mining section in Jining No.2 coal mine, the breakage depth was analyzed by using theoretical calculation and numerical simulation based on the mining sections geological and hydrological conditions. Then, on this basis, the stability of the waterproof coal pillar, which is between the tenth and the eleventh mining sections, was analyzed and evaluated synthetically combined with empirical formula in the regulations. The results show that： according to the regulations of water controlling in coal mine, the size of the waterproof coal pillar is slightly less than its critical safety size. Water-inrush caused by the goal water stored in the eleventh mining section is possible to occur, the goaf water stored in the eleventh mining section should be dredged and drained before mining the tenth mining section, the water pressure should not be greater than 0.4 MPa. The research results provide the basis for the goal water prevention and control, and ensure the safety mining of the tenth mining section.

关 键 词：采空区 隔水煤柱 数值模拟 评价 

分 类 号：TD745[矿业工程—矿井通风与安全]