Fine detection of mine collapse column by anti-explosive ground penetrating radar

Fan Cui¹, Zhiyuan Wu², Jia Chen², Lei Wang²

¹State Key Laboratory of Coal Resources and Safe Mining, China University of Mining Technology, Beijing

²College of Geoscience and Surveying Engineering, China University of Mining Technology, Beijing

This work discussed the technique for fine detection of mine collapse column by anti-explosive ground penetrating radar (GPR) and its feasibility. In stage of theoretical research, numerical forward modelling was used to study the response characteristics of collapse column on radar profile. In actual exploration, the spatial distribution pattern of collapse column was accurately stored by installing complex environment observing system in the pit. In processing and explanation, the disturbance types of mine were comprehensively analysed, and various measures were taken in the suppression of interference signals to obtain better exploration effects. The study showed that fine detection of collapse column can be realized by anti-explosive ground penetrating radar under the complex conditions in the pit.