METHOD FOR EXPLORATION AND DEVELOPMENT OF DEPOSITS WITH NESTED MINERALIZATION Russian patent published in 2023 - IPC E21C41/22 G01V9/00 

FIELD: mining industry.

SUBSTANCE: invention can be used for joint exploration and development of deposits with nested mineralization using the separate-gross method with caving and controlled storey end release of ore. The method includes driving along the hanging side of a delivery drift, a pioneer exploration-loading ore to the intersection with the lying side, exploration and drilling drifts, exploration of mineralization with fans of wells located at multiple LLR distances, detailing the elements of industrial mineralization with the identification of pockets of rich ore, sinking local preparatory and ore transfer workings for two high-quality categories of ore, excavation of rich nests with local chambers, excavation of the remaining loading orts to the excavation contour, formation of an outlet slot for each ort, drilling of missing production wells between exploration wells, breaking of a block in a compressed environment into collapsed rock with partial release, mass end release of ore through a slot. The difference between the method is that, according to exploration data, reserves are zoned according to condition and quality, with the allocation of potentially rich ore along the perimeter of the spent rich nests, ordinary, poor and substandard ore. By straightening the recumbent side, a floor release is ensured. At the same time, protrusions of substandard ore wedged into the excavation contour, located in the upper half of the floor, are beaten with wells rarefied to 1.5 LLR, achieving the formation of a coarse lattice structure of ore, large pieces of which in the bulk do not reach the outlet hole by the end of the outlet. Areas of low-grade ore are also mined with sparse, but not exceeding LLR, wells to form a lattice structure of the ore. At the same time, bypass channels are formed from finely crushed ore, which, together with filtration of enriched fine fractions, provide advanced extraction of potentially rich ore from areas remote from the flow zone.

EFFECT: reduced metal losses, reduced dilution and increased mining productivity.

1 cl, 5 dwg