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: rooms are worked simultaneously on both levels with displacement of rooms through one half of their width, definite sequence of room extraction, drawing-off of broken ore and filling of gob. EFFECT: higher efficiency. 126 cl