Method of mining potash ores and the like

Details Method of mining potash ores and the like Method of mining potash ores and the like

E - Fixed Constructions

21

C

262/6

E21C 41/16 (2006.01)

Patent

CA 1079757

ABSTRACT OF THE DISCLOSURE In the mining of potash ore or the like, the step of extracting ore in a split chevron pattern in which at least one wing passageway is advanced ahead of and on each side of a central entry before said central entry is advanced.

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