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封闭不良钻孔是影响矿区安全生产的重要隐患之一,不良钻孔具有导通工作面顶板上含水层,增强顶板砂岩的富水性.针对这一问题,将直流电法电极顶入工作面顶板上,采用分站式进行数据采集工作.数据采集完成后,经过数据预处理和无穷远校正及巷道校正、剔除旁侧干扰等处理,将二维电阻率格式转换成三维电阻率格式,使用圆滑最小二乘法对数据进行反演,将反演完成后的数据导入三维可视化成图,圈定钻孔附近岩层富水区,为矿井水防治工作者提供决策.经工程验证后,说明该方法具有很强实用价值及推广价值.
Poorly closed borehole is one of the important hidden dangers affecting the safe production in the mining area, and the bad drilling has the aquifer on the roof of the working face and enhances the water-richness of the roof sandstone.In response to this problem, the direct current method electrode is put on the roof of the working face , Using sub-station for data acquisition.After the data acquisition is completed, after the data preprocessing and infinity correction and roadway correction, excluding side interference and other processing, the two-dimensional resistivity format into three-dimensional resistivity format, the use of the smallest Inversion of the data by two-factor method, the data after the inversion is completed into a three-dimensional visualization map, delineate the water-rich area near the borehole, to provide decision-making for the mine water control workers.After the project is verified, the method is very strong Practical value and promotion value.