PROCESS OF EXPLOITATION OF THICK GAS-BEARING GENTLY DIPPING SEAMS Russian patent published in 1996 - IPC

Abstract RU 2057934 C1

FIELD: mining industry. SUBSTANCE: workings of lower layer are displaced towards completed column and rubble strip is left under intercolumn pillar of same width after advance of breakage face along lower layer. EFFECT: enhanced safety of process. 3 dwg

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RU 2 057 934 C1

Authors

Sirenko Ju.G.

Kirichenko A.S.

Volkov B.A.

Tarakanov V.A.

Petrovskij A.B.

Dates

1996-04-10—Published

1993-02-01—Filed