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2 083 833

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IPC

(21) (22)

Application

95108948/03, 1995-06-01

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Actual filing date

1995-06-01

(45)

Published

1997-07-10

(72)

Inventor

Jakovlev N.I.Shakhurdin S.A.Sukhovol'Skij S.N.Kazakov V.A.Tkach S.V.Ladenko A.A.Kovalev Ju.K.Fajner I.A.Khan V.V.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Kompanija

METHOD FOR DEVELOPMENT OF STEEP COAL SEAMS WITH BACKING WORKED-OUT AREA Russian patent published in 1997 - IPC

Abstract RU 2083833 C1

FIELD: mining industry. SUBSTANCE: development of sublevels is performed with making of filling mass by alternating strips of hardening material and hydraulic gobbing. Filling mass is arranged as stope line is advancing in strips firstly from hardening material then in strip of hydraulically filled material. At boundary of gobbing strip made by hydraulic filling, preliminarily made in coal seam is strip of hardening gobbing material. EFFECT: high efficiency. 9 dwg

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RU 2 083 833 C1

Authors

Jakovlev N.I.

Shakhurdin S.A.

Sukhovol'Skij S.N.

Kazakov V.A.

Tkach S.V.

Ladenko A.A.

Kovalev Ju.K.

Fajner I.A.

Khan V.V.

Dates

1997-07-10—Published

1995-06-01—Filed