METHOD FOR MINING STEEPLY DIPPING ORE BODIES AND METHODS FOR 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; applicable in underground mineral mining, particular, of complex ores. SUBSTANCE: the invention offers the method for mining steeply dipping ore bodies and two methods for 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. Novelty of these methods consists in that the evaluation of thickness of deposit and occurrence of ore bodies are carried out acoustic sounding by means of measurement of the velocity of propagation of waves in rocks by apparatuses of pulse acoustic logging. Levels are divided into sublevels. First, drilled and broken is lower sublevel of the upper level with broken ore drawn to its haulage horizon. Then, drilled and broken is lower sublevel of lower level with pillar formation at hanging side and drawing of broken ore. Upper sublevel of lower level is drilled and broken with storing of broken ore for the time taken for drilling and blasting of upper sublevels of the upper level; and drawing of broken ore to haulage workings of both levels with bypassing a part of broken ore of the upper level to worked out space of the lower level are effected after blasting of sublevels of the upper level, and filling of worked out spaces is performed after full drawing of broken rock. EFFECT: higher efficiency. 154 cl