Jet Piercing lmproved and Chambering for Open-Pit Operations

The jet piercing process, developed by Union Carbide Canada Ltd., is well established in blasthole production in open-pit mining. By t his process, holes can be drilled, shaped and chambered for blasting. In suitable or e or rock formations, a considerable cost reduction can be achieved. This paper reviews t he equipment used, relates how cost savings may be accomplished, and concludes with a mention of the most recent developments in t his field.
Keywords: blasting, Cost, Costs, Drilling, drilling and blasting, fuel oil, JP, open-pit, rock, Process, Processes, Production, Rock, Rocks
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