FIELD: mining.
SUBSTANCE: method involves stripping operations performed by longitudinal stripping cuts along the direct system with laying of overburden rock into external dump arranged on upper platform of a non-working open-pit side, at stock-piling of overburden rock to external dump in tiers that are formed along dumping front. Dumping front is arranged at a right angle to an upper edge of a non-working side of the open pit and aligned with movement direction of overburden rock from the working face of longitudinal stripping cut to their dumping place.
EFFECT: reducing overburden rock re-excavation volumes.
5 dwg
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Authors
Dates
2014-06-20—Published
2012-10-24—Filed