大倾角煤层底板岩层富水性立体电法探测

Three-dimensional Electrical Detection of Water Abundance in Floor Rock Stratum of Coal Seam with Large Dip Angle

煤层倾角大小对底板探水方法应用具有一定的影响。根据淮南矿区大倾角煤层工作面地质条件,采用三维并行电法探查技术对A1煤层底板灰岩层富水性进行测试研究,通过双巷三维数据采集、处理与反演,获得相应的底板岩层电性剖面及解释成果。现场测试结果表明,利用双巷条件,采用立体电法进行数据采集与处理具有一定的可行性,可为工作面底板岩层富水异常判断提供依据。

Different coal seam pitch has a certain influence on the application of the floor water prospecting method. In thispaper, test study was made on the water abundance of the floor limestone stratum of A1 coal seam according to the geologicalconditions of the working face of deep inclined coal seam in Huainan Coal Mining Area and by using 3D parallel electricalmethod, and through the data acquisition, processing and inversion in double laneways, the resistivity profile and interpretationresults of the floor stratum were obtained. The site measuring results showed that under the double laneway conditions, using three-dimensional electrical method for data acquisition and processing had certain feasibility, and it can provide the basis for judgingthe abnormal water abundance in the floor rock stratum of the working face.