Drilling and Blasting at the Phoenix Mine
This paper deals with drilling and blasting techniques at the Phoenix mine, near Grand Forks, B.C., which is now operated by The Granby Mining Company Ltd. The difficulties of open- pit mining through former under ground workings are unique to this operation. Rock types are related to drilling conditions, and the methods used, or contemplated, to overcome the several difficulties a re out lined. The equipment used is also mentioned. Finally, blasting techniques and costs are reviewed.
blasting, Cost, Costs, Drill, Drilling, drilling and blasting, open-pit, Phoenix, skarn, stopes, Drills, mining, Rocks