PROCESS OF DEVELOPMENT OF RESERVES OF THICK STEEPLY DEEPENING DEPOSITS OF ORE LOCATED UNDER PITS Russian patent published in 2003 - IPC

FIELD: development of deposits of mineral reserves. SUBSTANCE: invention can be employed for combined development of thick steeply DEEPENING deposits presented by ores of medium and high values. Characteristic feature of process lies in that all reserves beneath bottom of pit are opened up by shaft that passes to last deposit. Reserves under pits are developed in rising order of chamber-level system of mining with subsequent filling of developed space by combined backfill and wide chambers of second sequence are filled up with rock gobbing. EFFECT: increased safety of operation, reduced expenses for stowage material and shortened time of development of reserves. 2 dwg