张双楼煤矿上覆采空积水探测及突水危险性分析

Detection of Water-accumulating Goaf and Risk Analysis of Water Inrush of Zhang Shuang-lou Coal Mine

基于目前国有资源整合矿井水文地质条件复杂、老空积水危害大的问题,为研究上覆采空区积水对其下综采工作面安全回采工作的影响,以张双楼煤矿93604工作面为例,通过对其水文地质情况及上方7~#煤层的采掘情况分析,采用井下全空间瞬变电磁法综合设计探测方案,对工作面上覆岩层及7~#煤采空区赋水情况进行探测。通过三维处理及分析,得出工作面内及上方区域赋水情况,分析导致其呈现低阻的原因,据此针对性的制定放水设计及安全回采方案。结果表明,本方法能准确、有效的探测工作面覆岩水害分布情况,可为资源整合矿井采空区下工作面的安全回采提供理论及技术指导。

Aiming at the complex hydrogeological conditions and goaf water hazards in the present state-owned resource-integration coal mines and for the study of the overlying goaf water influence on safety recovery of fully mechanized working face, the author take the 93604 working face of Zhang Shuang-lou Coal Mine as an example to detect overburden strata and the 7~# goaf water's condition of it with the analysis of the hydrogeological conditions and the 7~# coal seam's mining condition above it adopting the integrated design of the transient electromagnetic methods.Through 3D data process and analysis, the author obtained the relatively low resistivity areas within and above the working face. Based on the analysis of the reason why these areas presenting low resistivity, the author carried out the specific design for water release and safety recovery. The result shows that this method can accurately and effectively detect the water distribution of overburden strata, which can offer theoretical and technical guidance of resource-integration coal mines' recovery safety under the goaf.