METHOD OF PREPARATION OF FROZEN ROCKS FOR EXCAVATION Russian patent published in 1997 - IPC

Abstract RU 2100606 C1

FIELD: mining industry; applicable in open-pit mineral mining for preparation of frozen loose deposits for excavation. SUBSTANCE: method includes thawing of rocks by hydraulic method and delivering of liquid for the purpose from aerostatic apparatus located above the prepared field. EFFECT: extended potentiality of the method due to simplified operations of water supply to field prepared for excavation.

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RU 2 100 606 C1

Authors

Morin A.S.

Butkin V.D.

Mironova Zh.V.

Egupov A.A.

Dates

1997-12-27—Published

1994-05-05—Filed