A Mine Bonus System Based on the Use of Performance Tables
THE orebodies of the Preston East Dome mine show a considerable variation in size,• shape, dip, and ground condition. They vary from small and large irregular masses being mined by shrinkage, cut-and-fill, and square set-and-fill mining methods to narrow veins being mined by open stoping. Standardization of mining operations has necessarily been difficult. This considerable variation in mining condition prompted the development of a bonus system which would give more equitable bonus payments throughout the mine than those obtained by the usually accepted methods of calculating mine bonus.
Bonus, fixed price, ore, price system, South Porcupine, Ontario, stoping, Mine, Mines, Performance, Prices, stope, stopes, Stoping, Systems