Application of Pit Radio-Electron Wave Perspective Technology in Fine Detection of Coal Mine Working Face

In view of the complex geological conditions of a coal mine working face in Shanxi Province, this study used tunnel radio-electron wave perspective combined with CT imaging to carry out fault detection and analysis. The results show that there is a small fault with a drop of 2m and a development distance of 30m in the working face, which is located at 830m-860m in the return trench, and it is verified by drilling that the fault is highly consistent with the actual geological conditions. In order to improve the detection accuracy, this study enhances the ray coverage density by encrypting the deployment of transmitting and receiving points, and selects the appropriate frequency of perspective detection. At the same time, CT imaging technology is used to enhance the inversion accuracy of radio-electron wave signals, thus improving the resolution of the fault drop and development distance, which can effectively make up for the deficiencies of the traditional methods in the detection of small faults, avoiding the potential risk of fault collapse, and providing an important foundation for the safe and efficient mining of the coal mine working face.