UA72597U - Method for development of mineral deposits - Google Patents

Abstract

A method for development of mineral deposits includes extraction of stock by blocks with division of those into sub-layers, and within a sub-layer into chambers, inter-chamber pillars, with penetration of development-cutting workings and well breakage with blast delivery in neighboring chambers. The drill workings within limits of chamber stocks are moved by propagation at angle that provides blast delivery, and at delivery horizon one forms cones of discharge and forms in chamber a vertical cut and compensation slot, at that at the axis of the chamber one forms an Y-like spatial pillar with angles of inclination with respect to horizon, this provides blast delivery of broken ore and support of exposure of rocks in the chamber, after that one carries out breakage of stocks of the chambers with blast delivery within boundaries of those and within boundaries of the Y-like spatial pillar, at that ore mass is passed by to the main horizon, with breakage of the Y-like pillar in two steps, with working out first its vertical support section, and than its inclined components, after that one works out the inter-chamber pillar at the side of the block worked out before.