Abstract:By shock wave detection technology,using smart mine seismograph, the location of preceding fault,physical changes within coal seam,and the probability of gas outburst can be foretold through the methods of time domain parameter and frequency domain feature, and the techniques of self-excitation and reception, Rayleigh wave and arrival-time CT.

The practical examples of detection to coal seam and small faults in single-head tunnels and structure detection in coal faces, expressed that the methods be more usful for detection of gas and small structure in mine.

Keywords:shock wave detection;coal seam;gas;structure

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