METHOD FOR RECLAMATION OF A ROCKY RECTANGULAR DUMP Russian patent published in 2023 - IPC E21C41/32 A01B79/02 

FIELD: mining.

SUBSTANCE: development of deposits by an open method and restoration of areas disturbed by open mining, used in the construction of rock dumps. The method for reclamation of a rocky rectangular dump includes preparation of the lower base of the dump body along the terrain, laying waste in a dump, forming outer slopes of tiers of rock rectangular dump is performed with reclamation along the perimeter subtiers 5-7 m and with slope angles in the range of 18-22°, with a slope of the sites towards the body of the dump, cover them with a fertile soil layer (FSL), followed by sowing grasses and planting seedlings. Preparation of the lower base of the dump body along the terrain is performed by removing the FSL by bulldozer for the optimal entry along the border of the dump and its laying in perimeter storage warehouse next to the projected rectangular dump. The remaining part of the FSP within the boundaries of the lower base of the dump body is placed by a bulldozer in piles, followed by loading it with hydraulic excavator in vehicles and export for laying in a permanent storage warehouse at the entrance embankment of the rock dump. Within mining reclamation of external slopes of tiers with a hydraulic excavator installed at the warehouse along the perimeter, cover soil layer on the upstream second outer slope with subsequent dumping of the FSP into the collar on the upstair subtier, a soil layer is formed on it with the same excavator, and similarly, the vertical movement of the FSL is continued from the bottom up, applying the soil layer.

EFFECT: improving environmental efficiency of the backfilled rock dump covered with a fertile soil layer.

1 cl, 1 dwg