FIELD: mining.
SUBSTANCE: invention relates to mining and can be used in quarry mining of minerals. Proposed method comprises preliminary determination of local extraction boundaries, cutting main cross-over into quarry from ground surface at preset distance from the line extraction bottom adjoins said cross-over on, forming unused branch of preset length and using temporary cross-over to end up with minerals extraction. Now preset-length cross-over branch is made to adjoin unused branch and designed cross-over, using destructed rocks, so that its links adjoin rotary platform. Proposed invention covers also analytical relations allowing determining move-down length and move-down branches, as well as boundaries of local extraction.
EFFECT: higher efficiency and yield, reduced costs.
7 dwg
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