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2 197 615

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IPC

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Application

2001101192/03, 2001-01-12

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Start date

2001-01-12

(22)

Actual filing date

2001-01-12

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Published

2003-01-27

(72)

Inventor

Burmin G.M.Pokrovskij B.V.Skljar N.I.Matveev I.F.Konjakhin V.I.Mjunkh A.F.

(73)

Holder

Oao Nauchno-Issledovatel'Skij Gornorudnyj Institut"

METHOD OF MINING THICK ORE DEPOSITS Russian patent published in 2003 - IPC

Abstract RU 2197615 C2

FIELD: mining industry; applicable in underground mining of thick ore deposits with mass caving of overlying rocks. SUBSTANCE: method includes formation of vertical compensation rooms with breakage of ore mass onto compensation space and clamping medium. Compensation rooms are made benched by blasting ends of downcast parallel holes from bottom upwards, with height of each bench being equal to length of charge in holes and determined by said mathematical expression. Benches in room are located symmetrical to room axis and leading them in block lower part. EFFECT: improved ore recovery due to excluded its overcompaction and provided safety of work in the course of block preparation for mass caving due to preservation of stability of caved rock mass in upper part of mined block. 3 dwg

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RU 2 197 615 C2

Authors

Burmin G.M.

Pokrovskij B.V.

Skljar N.I.

Matveev I.F.

Konjakhin V.I.

Mjunkh A.F.

Dates

2003-01-27—Published

2001-01-12—Filed

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