Research on coal mine geological comprehensive exploration based on multi-frequency radio pit penetration technology
In order to improve the guarantee ability of coal mine safety mining,a comprehensive geological exploration method for coal mines based on multi-frequency radio pit penetration technology was studied.A multi-frequency radio pit penetration method based on"single transmitter and dual receivers"was constructed,and a comprehensive coal geological exploration was carried out for the subordinate mines of coking coal company with two frequencies of 0.5 MHz and 1.5 MHz.According to the exploration,there are three abnormal areas in the No.1101 working face of this mining area.The problem of coal seam fracture development and fragmentation exists in the abnormal area YC1,the old goaf exists in the abnormal area YC2,and the old goaf produced by previous roadway mining exists in the abnormal area YC3.The exploration results are relatively accurate and no omissions occur.In the exploration of No.1131 working face,it is found that there are 5 geological abnormal scour zones,and the severity of each scour zone and the scour situation of coal seam can be effectively ana-lyzed.Therefore,this method can effectively realize the comprehensive exploration of different working faces in mining areas.
multi-frequency radio pit penetration technologycoal mine geologycomprehensive explorationfissure developmentscour zone
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