METHOD FOR CREATING SETTING SPLIT IN PERMAFROST ROCKS OF MINING FACE ROOF Russian patent published in 1996 - IPC

Abstract RU 2053307 C1

FIELD: mining industry. SUBSTANCE: method involves creating through setting split so that rock is completely broken along its formation line by providing through melting of rock massif along hole drilled from conveying drift to ventilation drift over coal layer in contact with roof. EFFECT: increased efficiency and wider operational capabilities. 1 dwg

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RU 2 053 307 C1

Authors

Bykov A.N.

Bykov N.A.

Dovidenko G.P.

Dates

1996-01-27—Published

1992-06-18—Filed