METHOD FOR EXTRACTING PLACERS AND TECHNOGENIC DEPOSITS OF MINERAL RESOURCES

摘要

FIELD: mining industry.;SUBSTANCE: method includes preparatory and extractive operations, concentration and dup-forming. Until permanent negative air temperatures set, water level is increased above mining equipment and prepared supplies and mounting of timbering on height of water increase level, and after forming of ice water level is dropped to previous level, and extractive and concentrating operations as well as dump forming operations for winter season are performed under surface of ice.;EFFECT: higher efficiency of operation of extractive and concentrating equipment during excavation of watered placer deposits of mineral resources and technogenic deposits of mineral resources under conditions of long periods of negative air temperatures.;3 cl, 1 tbl