音频电穿透技术在工作面防治水中的应用

Application of audio electrical penetration technology in water prevention and control of working face

为有效探测常村煤矿多煤组上部煤层顶板富水异常区的准确位置,提前采取措施进行含水层积水疏放,采用双频音频电穿透技术对120101工作面实施物探技术,初步划分14处高导电率异常区,并通过施工钻孔方法进行疏放水验证,钻孔累计放水量为1.10~14.15万m3,根据物探成果分析,总结出不同区域之间存在的导水性和隔水性规律,验证了音频电穿透技术方法的准确性和可靠性。

In order to effectively detect the accurate location of the water abundance abnormal area of the upper coal seam roof of the multi-coal group in Changcun Coal Mine,measures were taken in advance to drain the water in the aquifer.The dual-frequency audio electrical penetration technology was used to carry out geophysical exploration technology on No.120101 Face,and 14 high-conductivity abnormal areas were initially divided.The water drainage verification was carried out by the construction drilling method.The cumulative water discharge of the drilling hole was 11,000~141,500 m3.According to the analysis of geophysical exploration results,the water conductivity and water insulation laws between different regions were summarized,and the accuracy and reliability of the audio electrical penetration technology method were verified.