DEVELOPMENT METHOD FOR ROCK OR HALF-ROCK DEPOSIT WITH DIFFERENT BLOCK STRUCTURES Russian patent published in 2006 - IPC E21C41/26 

Abstract RU 2279546 C1

FIELD: mining industry, hydraulic building, road-building, agricultural building and so on, particularly to develop block rock or half-rock massifs.

SUBSTANCE: method involves stage-detailed rock zoning into block size, fracture porosity, strength and quality; dividing working zone massif into horizons having different heights or dividing working zone parts into productive blocks; dividing the productive blocks into uniform unit blocks, which are cut in top-down direction by "disassembling" method in accordance with block size so that blocks having the largest dimensions, namely technologically and technically oversized rock pieces in pit face are broken first and then properly sized and fine fractions are removed from rock massif with the use of corresponding working tool set of all-purpose mining rig. The all-purpose mining rig performs direct cutting of properly sized rock pieces from massif, drilling and blasting oversized rock pieces with the use of explosive charge having diameter of 8-84 mm under local shelter or by mechanical breaking or loosening operations. Then rock is removed and loaded on transportation means, moved to internal dump or to temporary bottomhole store.

EFFECT: increased efficiency of rock massif, pit face and coal strip mine cutting.

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RU 2 279 546 C1

Authors

Sekisov Gennadij Valentinovich

Mamaev Jurij Alekseevich

Levin Dmitrij Vladimirovich

Danil'Chenko Dmitrij Gennad'Evich

Dates

2006-07-10Published

2005-03-02Filed