Application of audio electrical penetration technology in water prevention and control of working face
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.
aquifergeophysical methodsaudio electrical penetrationdraining water
万方数据
维普
