SOLVING THE PROBLEM OF INCREASED WATER CONTENT OF ORE DURING CLEANING OPERATIONS AT THE DNK MINE
This article presents the results of studies carried out by employees of the Department of geomechanics of the Institute of Mining of the Ural Branch of the Russian Academy of Sciences at one of the mines of the Republic of Kazakhstan and is aimed at reducing the water content of ore during cleaning operations. When ore saturated with water, there is a sharp decrease in its quality, which negatively affects the efficiency of the mining. In this regard, the IM of the UB of the RAS had the task of determining ways of water filtering into mine workings and its main source. To solve this problem, we used various geophysical methods, which made it possible to determine structural inhomogeneities both on the earth's surface and in underground mine workings. In addition, according to the data obtained, cracks in the movement of the rock mass were detected during the subsequent detailed examination, although at least 10 years should have passed before the development of deformations according to the calculations. The results of the performed studies made it possible to create structure-geomechanical and hydrogeological models of the rock mass, reflecting the structure of the studied area, the sources and ways of entering underground water into mine workings and treatment units. The conducted studies made it possible to understand the main cause for the flooding of the treatment workings, to determine the source and to develop recommendations for the arrangement of the drainage system as well as of the mining operations to minimize water ingress into the mine workings, which consist in creating a capital long-term drainage system in combination with palliative local measures to reduce the flow of water into the treatment area.