METHOD FOR EXTRACTING STRIPPING ROCK Russian patent published in 2007 - IPC E21C41/26 

FIELD: mining industry, possible use during open combined excavation of bed deposits with two coal formations with alternating extraction of formations and parting and technology of stripping operations based on transporting and non-transporting excavation system.

SUBSTANCE: in accordance to invention, at predetermined sections usable for processing parting in accordance to transport-less dragline technology, special dumping vessels are created and moved for required value towards excavated space, meant later for excavation of parting rocks into them. Volumes and amount of these vessels is determined depending on mining conditions and parameters of stripping equipment. Therefore, a part of volumes of transport stripping is redistributed to non-transport stripping.

EFFECT: lower costs of stripping operations and less harmful blowouts into atmosphere from vehicle transport.

1 ex, 1 tbl, 1 dwg