ABSTRACT
Main priority and strategic task of metal mining industry in the fierce competition in the global market of crude ore is increasing in the content of valuable component in its production. Characterization of mined ore materials quality is possible in terms of dilution. In developing ore deposits chamber mining with hardening backfill depending on the staged development of object except waste rock dilution is also backfilling material. With decreasing depth of mining operations and increase tensions of rock massif, special attention should be paid to the sustainability of rock and artificial massif that will provide a stable and efficient mining of ore deposits.
