Raise Climber Miners

In the past upward mining with men working from a cage hung from a cable through a small pilot hole drilled downward from above. In 1957 this procedure was improved by Swedish development of the raise climber, whose working cage climbs a rail fastened to the shaft wall and extends backward into the horizontal access tunnel into which the cage is retracted during a blast.

Raise mining technology over the past fifty years have allowed for safe development of shafts, ventilation and ore and waste passes allowing mining procedures to move in a safe and productive manner, raise mining can be done with two to five miners on the drill deck and can advance footage or meter advancement up to sixteen to twenty feet in twenty four hour period depending on ground conditions.

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