The application on shallow seismic methods detection in unknown mine goaf

According to the detection of the unknown 13102 and 13103 area goaf in a coal mine in Ordos,the range of this area goaf was obtained by using the 428 seismograph and the artificial hypocenter with the manual hammer multiple stack.Based on the results of Surface drilling,the distribution of this area goaf was achieved,which would provide a basis for mine working face layout and safety science and security.