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2 038 476

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IPC

(21) (22)

Application

5029730/03, 1992-02-25

(22)

Actual filing date

1992-02-25

(45)

Published

1995-06-27

(72)

Inventor

Tereshkin A.F.

(73)

Holder

Aktsionernoe Obshchestvo Ugol'Naja Kompanija

COAL DEPOSIT EXPLOITATION METHOD Russian patent published in 1995 - IPC

Abstract RU 2038476 C1

FIELD: mining industry, in particular, process for exploitation of steep fire-hazardous coal beds. SUBSTANCE: method involves working of lower floor and stowing goaf in upper part of floor; working lower part of floor by means of systems of artificial caving of roof. Inclined roof of bed portion which is worked simultaneously with stowing, is not below height of natural balance doming. Artificial caving of roof is effectuated by undercutting its lower border of portion of floor worked with stowing. Length of blast hole for roof caving is determined from expression recited in Specifications. EFFECT: efficient exploitation of coal deposit. 2 cl, 3 dwg

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RU 2 038 476 C1

Authors

Tereshkin A.F.

Dates

1995-06-27—Published

1992-02-25—Filed

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