METHOD OF BLOCKS BOTTOM PREPARATION Russian patent published in 2001 - IPC

Abstract RU 2168019 C2

FIELD: mining industry; applicable in mining of mineral deposits by underground method. SUBSTANCE: method includes successive driving of roadways and service openings, stopes and formation of pull holes, additional driving of raises from stopes of adjacent service openings, and horizontal connections between raises and formation of ore receiving opening in the form of trench. Drawing of ore from trench is carried out concurrently with ore drawing from adjacent pull holes. EFFECT: reduced mineral losses. 2 dwg

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RU 2 168 019 C2

Authors

Vokhmin S.A.

Malinovskij E.G.

Vasin S.Ju.

Dates

2001-05-27Published

1998-06-15Filed