METHOD OF MINING OF MINERAL BEDS AT LARGE DEPTHS Russian patent published in 1997 - IPC

Abstract RU 2091582 C1

FIELD: mining; applicable in underground mining of mineral bedded deposits at large depths. SUBSTANCE: the offered method includes driving of development workings and mining of bed by longwall method. Left between longwall and development working located on the side of worked-out space is mineral pillar. Width of pillar is taken equal to depth of spreading of intensive fracturing zone of rocks of immediate roof in vicinity of development working. EFFECT: higher efficiency. 2 dwg

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RU 2 091 582 C1

Authors

Zubov V.P.

Savin V.A.

Dates

1997-09-27—Published

1994-01-10—Filed