METHOD FOR EXTRACTING ORE BLOCKS, CUT BY SUBVERTICAL POST-ORE DIKE

摘要

FIELD: mining industry.;SUBSTANCE: method includes documenting post-ore dikes of sub-vertical fall, including no mineral resources, having lesser hardness and more broken, and areas of effect of these dikes is contoured. Compensation hollows are formed on both sides of dike at limits of area of dynamically meta-morphed ore with rich ore, at distance from axial line of dike, determined from mathematical expression. Outlet mines are formed along long axis of compensation hollow. Drilling of well sets is performed in rock solids of post-ore dike and area of ores dynamic metamorphism - in planes normal to main cracks system and of long axes of compensation hollows, and in main portion of ore block - in parallel to long axes of compensation hollows. Firsthand extraction of wells in dike rocks is performed as well as in area of ores dynamic metamorphism on compensation hollow by charges with lesser specific losses of explosive substances in main portion of block - in areas of hard and solid rock solids - massive is extracted onto formed compressed environment. First of all main portion of block is let out with richer ore, and then - poorer ore from area of ores dynamic metamorphism and dike rocks.;EFFECT: higher quality of product ore.;2 dwg