Sinking No. 4 Shaft at Hartebeestfontein Gold Mining Company, Ltd

A brief description is given of the requirements which No. 4 Shaft has been designed to meet and of the methods by which two-stage winding of rock has been accommodated in a single shaft sunk to a depth of 7,421 ft. This is followed by a consideration of the factors which led to the decision to sink the shaft as rapidly as possible.
Keywords: Air, calcium chloride, compressed air, concrete, dolomite, shaft, Capacity, Concrete, Operation, Pipe, Rope, Ropes, Shafts, Water, Waters
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