Solution of mining engineering problems at a potassium salt deposit using geophysical methods

Abstract

the article presents the experience of research of mining-geological conditions in the area of projected waterproofing constructions in the mine of one of the mines of the Verkhnekamskoye salt deposit by methods of geophysics. Complex geophysical surveys were carried out by methods of GPR and seismic survey on shear waves with separation of reflections. The complex used makes it possible to study the target interval of the geological section quickly and with high detail, thereby obtaining initial data for designing and solving mining engineering problems. The research performed allowed us to determine the hypsometry of the layer of marking clays, which lies at a relatively shallow depth from the bottom of the drifts along the underlying bed of rock salt, in the area where the waterproofing constructions are designed. In the course of works by the method of GPR, the main negative factors affecting the obtaining of conditioned data were identified. They are related to surface conditions, the presence of a damp pile and puddles of brine. Therefore, the seismic survey method based on other physical principles was chosen to solve the task. Intensive folding of the marker clay bed stands out on the geophysical sections. The correlation between the picks of the marker clay top by GPR and seismic survey is 0.99. According to the results of the research, it is established that the use of the selected complex of geophysical methods for solving mining and technical problems is very promising.