FIELD: mining industry.
SUBSTANCE: method includes extraction of block by slanting layers in upward direction at an angle close to angle of natural slant of broken off ore, casing of broken off ore with partial sub-outlet of ore after breaking off of each layer, delivery of excessive broken off ore along surface of case and general outlet of ore through base of cleaning block. For increasing mine effectiveness and lowering impoverishment of ore by side rocks when slanting surface reaches case at angle close to natural slant angle, ore extraction and removal of enveloping rocks is continued by separate method with outlet of ore and rocks through specially expanded ore chutes along block flanks separately for ore and rocks with their possible disintegration on basis of size of pieces.
EFFECT: lower primary and secondary impoverishment of extracted ore, higher mine productiveness and operations safety.
2 dwg
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