Abstract
Abstract As part of the study, an analysis of scientific and technical literature, as well as practical experience of domestic and foreign mining enterprises, was carried out regarding the formation of pit slope benches close to their ultimate parameters. Particular attention was paid to blasting technologies: improved initiation patterns for borehole charges in the contour zone and charge designs for the slot-hole row were proposed. Optimal blasting schemes were selected considering the orientation of major fractures, which made it possible to determine rational delay intervals between rows of charges. Based on the analysis of actual disturbance of slopes formed at ultimate parameters on the eastern pit wall, recommendations were developed to ensure the stability of slopes in the final pit contour. Two options for mining 6.0 million ton ore reserve were also considered. According to one of them, it becomes necessary to relocate the central roadway. The obtained results make it possible to optimize mining parameters and ensure the safe development of the deposit.