METHOD FOR MINING OF GENTLY DIPPING POTASSIUM BEDS WITH THIN WATER-PROTECTION MASS Russian patent published in 1997 - IPC

Abstract RU 2098625 C1

FIELD: mining. SUBSTANCE: method includes extraction of ore by rooms with leaving pillars of various service life. Filling is carried out in rooms between pillars with short service life. Plate is formed of broken pillars and filling material. Pillars with prolonged service life are made to observe their width to height ratio of more than one. EFFECT: higher efficiency. 2 dwg

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RU 2 098 625 C1

Authors

Artemov V.G.

Papulov L.M.

Chelpanova E.V.

Dates

1997-12-10—Published

1995-08-31—Filed