METHOD FOR COMBINED MINING OF DEEP-SEATED DEPOSITS WITH ROCKS OF DIFFERENT HARDNESS

摘要

FIELD: mining. SUBSTANCE: method includes determination of contours of loose ore deposits and ore deposits composed of hard ores. Holes are drilled into loose ore deposits down to their lower boundary. Bed is mined by layers. Pulp is formed hydraulically and raised to the surface. After hydraulic borehole mining, vertical or inclined shaft in side rocks is sunk by means of at least one horizontal or inclined exposing working from shaft to ore body. Ore deposits comprised of hard ores are mined layer by layer from top downward with filling worked-out space. EFFECT: higher efficiency. 3 dwg