RECOVERY METHOD OF MINERALS Russian patent published in 2009 - IPC E21C41/00 

FIELD: mining.

SUBSTANCE: invention relates to recovery of minerals. Method of recovery of minerals, according to which there are located stepwise parallel rows of identical horizontal disclosed mine openings, limited from one side by face, and from the other - by dump, and located one over other with formation of common cavity connecting it, corresponding one incline benching, by which it is implemented extraction of minerals to surface from breakage lateral opening, herewith face of each downstream or each up-stream excavation is pushed on with lagging with formation of return bench of developed monolithic massif, horizontal part of which is roof of underlying excavation, herewith face of each overlying excavation is located over middle part of underlying excavation, herewith there are used located in parallel with shift on two levels of production devices, overlapping uninterruptedly in pairs by its parts lateral openings, herewith by means of one of devices it is supported top and implemented driving of top excavation under return bench of massif with bearing on soil of underlying lateral opening or for bench of its dump with holding of lateral transport communication with part of other device, located in the same lateral opening on one level, herewith by means of each devices it is implemented excavation, face of which is located over and before the projection on which device is installed with ability of transportation under action of gravity of broken mountain mass top-down into tank before bench, limited from the other side from filling up of the third bottom excavation by subordinate device through the space or clearance between benches.

EFFECT: invention provides cost saving of mineral's excavation.