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2 007 577

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C1

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IPC

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Application

4885878/03, 1990-11-26

(22)

Actual filing date

1990-11-26

(45)

Published

1994-02-15

(72)

Inventor

Rut'Kov K.I.Fomichev V.I.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Po Dobyche I Pererabotke Uglja

METHOD OF GUARDING OF WORKINGS IN HEAVING SOILS Russian patent published in 1994 - IPC

Abstract RU 2007577 C1

FIELD: mining industry. SUBSTANCE: unloading of rock mass in guarded working close to outline is conducted. Unloading is performed by driving trapezoidal space in soil of guarded working in same face. Width of space on soil should be equal to 0.6 width of soil of guarded working. Hight of space should not be less than convergence during period of running of working. EFFECT: enhanced stability of working by formation of advanced resistance to change of equilibrium state of mass of displacing rocks with stripping of it with working face. 2 cl, 6 dwg

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RU 2 007 577 C1

Authors

Rut'Kov K.I.

Fomichev V.I.

Dates

1994-02-15—Published

1990-11-26—Filed

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