STUDY OF THE EFFECT OF REFINING ON THE SUSTAINABILITY OF THE LEVEL OF THE SYSTEM WITH ORE SELF-MININGON THE DEEP LEVELS OF THE “DNK” COLLIERY

This article presents a study of the effect of refining on the sustainability of the level of production of a system with self-mining of ore in the deep levels of the “DNK” colliery, and also provides information on the state of technology in world collieries. Presents options for working out the second stage (lower part) of the ore body at the “DNK” colliery. Various options of the mutual arrangement of the ore deposits being worked out with an assessment of the development of collapse processes in the massif during the formation of loads on lining workings of the production level are considered. The results of this study can be used and applied in practice