EVALUATION OF DEEP-LEVEL MINING SYSTEMS FOR STEEP MEDIUM-THICK AND THIN ORE DEPOSITS
For the conditions of a deep-seated polymetal deposit, the authors have performed geomechanical assessment of design components of sublevel mining with room-and-pillar method and backfilling. With regard to the damage of rock mass, it is shown that the geotechnology of topdown mining ensures higher safety as compared with the bottomup stoping.