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(19)

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2 099 526

(13)

(51)

IPC

(21) (22)

Application

95118809/03, 1995-10-31

(22)

Actual filing date

1995-10-31

(45)

Published

1997-12-20

(72)

Inventor

Shamanskij G.P.Marakov V.E.Nesterov M.P.Vorontsov V.I.Anikin N.F.Sivkov E.S.

(73)

Holder

Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij I Proektnyj Institut Galurgii"

METHOD FOR MINING OF GENTLY DIPPING CONTIGUOUS POTASSIUM BEDS Russian patent published in 1997 - IPC

Abstract RU 2099526 C1

FIELD: mining industry. SUBSTANCE: with leading extraction of the first stage rooms, rigid interroom pillar is formed in lower bed, then it is relieved by extraction of mineral in upper bed by rooms with formation of yielding pillars. Then in zone of relief of lower bed, secondary rooms are extracted in rigid interroom pillars. In this case yielding pillars are formed between rooms of the second stage. EFFECT: higher efficiency. 1 dwg

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RU 2 099 526 C1

Authors

Shamanskij G.P.

Marakov V.E.

Nesterov M.P.

Vorontsov V.I.

Anikin N.F.

Sivkov E.S.

Dates

1997-12-20—Published

1995-10-31—Filed