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2 029 868

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C1

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IPC

(21) (22)

Application

5018725/03, 1991-07-15

(22)

Actual filing date

1991-07-15

(45)

Published

1995-02-27

(72)

Inventor

Kozlovskij I.F.Konjakhin V.I.Eremenko A.A.Azar'Ev N.A.Karbushev S.F.

(73)

Holder

Institut Gornogo Dela So Ran

METHOD TO PREPARE BLOCKS IN LARGE DEPTHS Russian patent published in 1995 - IPC

Abstract RU 2029868 C1

FIELD: mining to work out underground power ore field under large depths. SUBSTANCE: method includes block preparation, compensating chamber generation, breaking down the minerals into the chambers by concentric vertical layers with incoming radial ore mining, determination of maximum stress direction in the formation, formation of alternate compensating chambers of different volume in ore formation, with compensating chambers of enlarged size being formed in areas of increased stress concentration. EFFECT: large depth mining. 2 cl, 2 dwg

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RU 2 029 868 C1

Authors

Kozlovskij I.F.

Konjakhin V.I.

Eremenko A.A.

Azar'Ev N.A.

Karbushev S.F.

Dates

1995-02-27—Published

1991-07-15—Filed

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