METHOD FOR PREVENTION OF SPONTANEOUS FIRES IN STEEP SEAMS Russian patent published in 1995 - IPC

Abstract RU 2039291 C1

FIELD: mining. SUBSTANCE: flexible mass is formed below level pillar by layer excavation, laying on layer floor of flexible metal cover, and its anchoring to enclosing rocks, and hydraulic filling of worked out space. Then, layer of coal is extracted at seam roof to initiate development of cave roof. Coal in lever pillar is treated with antipyrogen after its deformation beyond the elastic and plastic values. EFFECT: higher efficiency. 2 cl, 1 dwg

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RU 2 039 291 C1

Authors

Shablovskij V.I.

Kartashov Ju.M.

Igishev V.G.

Dates

1995-07-09—Published

1992-03-20—Filed