METHOD OF COMBINED DEVELOPMENT OF ELONGATED DEPOSITS OF STEEPLY PITCHING SEAMS Russian patent published in 2014 - IPC E21C41/00 

FIELD: mining.

SUBSTANCE: proposed method comprises opening the deposits by subsurface works and layer-by-layer development of main deposits by open works. It includes reclaiming to stores of every bed in direction of the pit boards to form safety prisms nearby design outline of the latter. Remote control equipment is used at final works at every bed. Rock is carried over subsurface courses of worked bed to surface. Deposit is exposed to concentration bed mark and open working. Then, temporary exposed and subservice opening works are performed to separate the flows of overburden and minerals. Concentration bed and temporary exposed works marks are set over pit depth related with current volumes of exposure works at layer-by-layer working. Dominating volume of overburden is fed to surface via openings. Total volume of minerals is fed via subsurface openings is discharged to concentration bed site. Deposit deep overburden is dumped in pit worked-out area to make altitude marks of overburden inner terrace row comply with those of cross-heading foundation level.

EFFECT: formation of integrated mining complex with parameters to allow its use both in development and after its termination.

2 cl, 4 dwg