摘要
为了查清煤矿积水采空区,分析了采空区及其上覆岩层的地球物理特征,采用地面瞬变电磁法对贵州某煤矿进行采空区探测,首先通过已知水仓试验,选取最佳工作参数,并总结分析采空区的地电响应特征,然后对煤矿积水采空区进行地面探测,通过数据反演处理,得到反映采空区的视电阻率剖面图,最后结合已知地质、水文、钻孔及采掘资料进行综合解释与推断,有效地圈定出采空区范围及其富水性情况,并通过钻孔进一步验证其结果的准确性,为后续矿井防治水措施提供了有力参考资料。
In order to find out the mine water goaf,this paper analyzes the geophysical characteristics of the goaf and the overlying strata,and utilizes the ground transient electromagnetic method(TEM)to detect the goaf of a coal mine in Liupanshui city,Guizhou province.Firstly,based on the known sump test,the optimum working parameters are selected,and the geoelectric response characteristics of goaf are summarized,and then the ground of the mine water goaf is detected.Through the data inversion processing,the reacting goaf of apparent resistivity section is obtained.Finally,with the known geological,hydrological,drilling and mining data,it carries out the integrated interpretation and inference,which effectively delineates the goaf scope and its groundwater-bearing situation and further verifies the accuracy of its results through drilling,which will provide a favorable reference for the mine water control measures.
作者
彭赟
李燕
杨淮
Peng Yun;Li Yan;Yang Huai(Energy Bureau of Shuicheng country,Shuicheng Guizhou 553600,China;Guizhou Electric Power Design&Research Institute Corporation Limited,PowerChina,Guiyang Guizhou 550002,China)
出处
《工程地球物理学报》
2019年第6期849-855,共7页
Chinese Journal of Engineering Geophysics
基金
贵州省水城县典型煤矿老空区水害隐蔽之灾因素勘察项目(编号:KK00401W)
关键词
瞬变电磁法
采空区
富水性
矿井安全
地电响应特征
transient electromagnetic method
goaf
water retention
mine safety
geoelectric response characteristics
