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Application filed by Национальный горный университетfiledCriticalНациональный горный университет
Priority to UAA200805530ApriorityCriticalpatent/UA90544C2/en
Publication of UA90544C2publicationCriticalpatent/UA90544C2/en
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals
(AREA)
Abstract
A method for mining operations in which after complete extraction of main ore mineral one penetrates additional preparation workings with formation of stopes, that for in direction of deposit of non-ore component of mineral one deepens vertical stems and performs primary mining and second working in horizontal plane of main producing horizon with formation of working excavation by type of chamber-and-pillar system of mining with breaking out monoliths of mineral in mining faces and with leaving pillars for support of worked-out space.
UAA200805530A2008-04-292008-04-29Method for mining operations
UA90544C2
(en)