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2 057 942

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C1

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IPC

(21) (22)

Application

93034469/03, 1993-07-12

(22)

Actual filing date

1993-07-12

(45)

Published

1996-04-10

(72)

Inventor

Tolkachev G.M.Dolgikh L.N.Sukhovoj V.N.Cherepanov Ju.B.

(73)

Holder

Permskij Gosudarstvennyj Tekhnicheskij Universitet

METHOD OF SUPPORTING OF ROCK WORKINGS IN SALT DEPOSITS Russian patent published in 1996 - IPC

Abstract RU 2057942 C1

FIELD: mining industry. SUBSTANCE: before erection of support thickness of layer of preliminary destruction of rock is determined and layer of rock having thickness equal or exceeding that of mentioned layer is removed from surface of working. Then support is built and space between support and surface of working is filled with grouting mortar. EFFECT: enhanced operational safety.

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RU 2 057 942 C1

Authors

Tolkachev G.M.

Dolgikh L.N.

Sukhovoj V.N.

Cherepanov Ju.B.

Dates

1996-04-10—Published

1993-07-12—Filed

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