Blasting is still unavoidable in ore extraction, hence the process of mining is interrupted. Therefore, the maximum concentration of mining both in time and space, characteristic of modern mining, with the use of efficient mining systems and productive self-propelled equipment is especially important. The experience of domestic mining practice and conducted research, as well as the exchange of views at the V International Mining Congress held in Moscow in 1967 make it possible to outline some solutions in terms of directions for the development of technology of underground development of ore deposits.