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- W593654141 abstract "THE OVERALL COSTS OF A DRILLING MACHINE COMPRISE 3 PARTS: (1) FIXED COSTS; HOURLY DEPRECIATION OF THE MACHINE AND ITS ANCILLARY EQUIPMENT (PUMPS, COMPRESSORS, ANCILLARY VEHICLES, ETC) INTEREST FROM THE CAPITAL; (2) OPERATIONAL COSTS: MAINTENANCE, SPARES AND ACCESSORIES, SALARIES, FUEL, OIL, ADMINISTRATION AND SUPERVISION; (3) COST OF TOOLS: TUBES, PNEUMATIC HAMMERS, TOOLS FOR EXTRACTING CORES (DRILLING ROTATING TOOLS). FROM THESE FACTORS, IT IS POSSIBLE TO CALCULATE THE COST OF DRILLING ONE METER OF HOLE IN A MINE, AND IF THE OVERALL COST OF EXPLOSIVES IS KNOWN, THE COST OF PRODUCTION PER TON CAN BE ESTIMATED. EXAMPLES ARE GIVEN OF OVERALL COSTS FOR A LIMESTONE QUARRY AND AN IRON ORE MINE." @default.
- W593654141 created "2016-06-24" @default.
- W593654141 creator A5079174408 @default.
- W593654141 date "1975-08-01" @default.
- W593654141 modified "2023-09-26" @default.
- W593654141 title "DRILLING AND BLASTING COSTS" @default.
- W593654141 hasPublicationYear "1975" @default.
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