Combined application of integrated geophysical exploration in exploration of small mine roadway
The exploration of small mine roadway has always been a difficult point in engineering construction.Due to the incomplete-ness of mining data and the lack of management,the cost of exploring small mine roadway has greatly increased,and a little carelessness may even bury a great hidden danger for the buildings built above.In view of the difficulties in the exploration of the small mine road-way,a comprehensive geophysical exploration method combining the opposing coils transient electromagnetic method(OCTEM)and the ground penetrating radar method was used to explore the subsidence area in a certain site.Through the interpretation of comprehensive geophysical exploration and the establishment of a three-dimensional geophysical model,the trend and buried depth location of the small mine roadway were identified,drilling and in hole-forming imaging technology was verified,providing a basis for the later management of the goaf in the site.The detection results indicate that the comprehensive geophysical exploration method has a fast and efficient effect on the exploration of shallow small mine roadways,and has reference significance for solving similar geological hazard problems.
small mine roadwayopposing coils transient electromagnetic methodgeological radar methodintegrated geophysical explo-rationthree-dimensional geophysical model