| 摘要 |
FIELD: mining industry; can be used in openpit mining of mineral deposits. SUBSTANCE: after building-up of the pit edge according to the outline changed relative to the design up to the intermediate bottom of the open pit, wells are drilled within the limits of mineral resources and shot to a depth providing for extraction of mineral resources beyond the limits of the design bottom. Analytical dependence of determination of the bulk of mineral resources extracted beyond the limits of the open pin design bottom is illustrated. EFFECT: enhanced bulk of extraction of mineral resources from deposits, stability of pit edges and safety of work in the open pit at reduced bulks of overburden and expenditures connected with extraction of mineral resources. 2 dwg |
