METHOD OF MINING STEEPLY DIPPING ORE BODIES AND METHODS OF MINING, PROCESSING AND CONCENTRATION OF COPPER, AND/OR COPPER-ZINC, AND/OR ZINC, AND/OR SULFUR ORES WITH POSSIBLE CONTENT OF GOLD, SILVER AND OTHER PRECIOUS AND RARE-EARTH ELEMENTS FROM STEEPLY DIPPING ORE BODIES

摘要

FIELD: mining industry; mineral mining. SUBSTANCE: thickness of deposit and volume occurrence of ore bodies are evaluated by acoustic sounding and measurement of velocity of are evaluated by acoustic sounding and measurement of velocity of propagation of longitudinal waves by apparatuses of pulsed logging. Rooms are extracted simultaneously from two levels with displacement of rooms through one half of their width, definite sequence of room extraction, drawing of broken ore, and filling of gob. Operations may be carried out both, by underground method and in combination with opencast method. EFFECT: higher efficiency. 125 cl