In order to explore the goaf area and situation of multiple coal seams,the seismic wave frequency resonance exploration method and the controllable source audio geodetic electromagnetic bathymetry meth-od are used for comprehensive exploration.In this paper,the method principle of seismic wave frequency resonance exploration method,controllable source audio geodetic electromagnetic bathymetry method and physical characteristics of the goaf have been explained.Combining with actual cases,the abnormal charac-teristics of the goaf have been analyzed from the wave impedance section and apparent resistivity section,and the goaf area has been delineated.The inferred results are consistent with actual situation after drilling verification,and the advantages and disadvantages of the two exploration methods have been analyzed.In this study,the application of seismic wave frequency resonance exploration technology to the detection of multi-coal seam goaf has achieved good results.It has important references and guiding significance for the detection of multi-coal seam goaf.
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