Development Methods and Equipment At Lake Shore Mines, Limited
G. J. BIRNIE; W. T. ROBSON
THE preparation of the following paper has been undertaken in the belief that a description of the development methods and equipment used at Lake Shore, at the present time, will prove of general interest. Working depths of nearly a mile and a half in shaft sinking and of more than one mile for stoping operations have imposed problems not encountered at shallower horizons.
Air, Development, Developments, Douglas fir, float valve, shaft, spruce, stoping, Drifts, Raises, Shafts, steel, Steels, Water