Abstract:In this paper, through analyzing the differences in electrical resistivity between goaf and surrounding rock in coal mines, by using comprehensive geophysical methods to detect goaf, using the apparent resistivity intermediate gradient method to delineate areas with low and high resistivity anomalies, and combining with geological data, coal strata have been delineated. By using highdensity electrical methods, the vertical distribution characteristics of abnormal areas have been divided, and the distribution scale and deep occurrence form of the abnormal areas can be comprehensively determined. Based on mining data, the location, burial depth, and scale of the coal mine goaf can be inferred. After drilling verification, the reliability of shallow coal mine goaf inferred by comprehensive geophysical methods is high. It can be promoted and applied in coal mine goaf.
