METHOD FOR PREPARING INTER-CHAMBER BLOCKS FOR EXTRACTION Russian patent published in 2005 - IPC

Abstract RU 2249112 C2

FIELD: mining industry.

SUBSTANCE: method includes extraction of deposit resources by chambers through one of them, construction of ice-rock backfill in extracted space of primary chambers and following extraction of inter-chamber blocks. In inter-chamber blocks wedge-shaped slits are formed immediately in ceiling of deposit, space of slits is filled with ice-rock backfill, while slits are formed of inter-chamber blocks for 1/3 of width.

EFFECT: higher durability, higher effectiveness.

3 dwg

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RU 2 249 112 C2

Authors

Neobutov G.P.

Vasil'Ev P.N.

Petrov D.N.

Cherepanov A.Ju.

Dates

2005-03-27Published

2002-12-15Filed