GEOFILTRATION MODELING AND CHARACTERIZATION OF THE LEBEDINSKY UNDERGROUND WATER

Topicality: The problem of groundwater protection from pollution is nowadays an important part of environmental surveys. Due to the fact that the large scale of drainage works aimed at providing normal conditions for construction and operation of open pits lead to significant changes and disturbance of the natural regime of groundwater, monitoring of the state of water resources is an urgent task. Purpose: The purpose is to predict the impact of drainage system on groundwater, the development of a geofiltration model, which will allow to predict in detail the conditions of formation of filtration flow, level, quantity of reserves and quality composition of groundwater in the zone of influence of the quarry and the surrounding area. Method: Method of complex substantiation of optimal forecasting scheme with the help of created model. Results of the work: The results of the study of the state of groundwater before the Lebedinsky deposit and after. It was revealed that disturbed groundwater regime in the area of JSC Lebedinsky GOK pit location and in the adjacent territory depends on the Lebedinsky pit drainage system. To predict the impact of the drainage system on groundwater together with "Tsentrogiproruda" was created geofiltration model, which allowed a detailed prediction of the conditions of filtration flow formation in the zone of influence of the quarry. Conclusions: A slight decrease in groundwater levels in the area of the quarry and in the adjacent territory, as well as a decrease in groundwater reserves of "RSU" water intakes on the Albian-Cenomanian aquifer, which is in the zone of influence of the drainage system of the quarry, is predicted. Expansion of the quarry and the development of dumps will not lead to a change in the quality composition of groundwater.