济二矿覆岩离层水涌水机理与防治技术研究  

Research on control techniques and mechanism of water inrush from bed separation of overlying strata in No.2 Jining Coal Mine

作　　者：贾民[1] 田涛[1] 

机构地区：[1]兖州煤业股份有限公司济宁二号矿,山东省济宁市272072

出　　处：《中国煤炭》2013年第1期110-115,共6页China Coal

摘　　要：以济宁二号矿113下05工作面采空区异常涌水为例,在分析其发生背景条件基础上,应用数值模拟研究了煤层开采顶板及覆岩中离层的分布位置,并利用井下钻孔实际监测验证了离层的存在及动态变化特征,提出了覆岩离层水形成的3个基本条件以及覆岩离层水涌水机理的静水压理论模式,最后提出了离层水防治的关键技术措施,并成功用于生产实践。Taking the abnormal water inrush in goaf at No. 113 lower 5 working face in No. 2 Jining Coal Mine for example, the roof and the distribution of bed separation in overlying strata were investigated by numerical simulation on the basis of the analysis of abnormal inrush. Besides, the existence and the dynamic variation characteristics of the bed separation were verified by the practical monitoring from the underground boreholes. The three basic conditions of the bed separation formation in overlying strata were put forward, as well as the theoretical mode as ＂hydrostatic pressure＂ for the mechanism of water inrush from bed separation in overlying strata. Finally, the key techniques of water inrush control in bed separation were established and applied to the production practice successfully.

关 键 词：坚硬覆岩 离层水 静水压 防治技术 

分 类 号：TD74[矿业工程—矿井通风与安全]