Calculate the powder factor of this design Assuming that the same tons of rock will be...

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Calculate the powder factor of this design Assuming that the same tons of rock will be blasted by both design, how many holes (round it to nearest whole number) will need to be drilled using Emulsion? Calculate: Explosive cost (Including Booster & cap) per hole Drilling cost per hole Cost of complete shot If you drill for Anfo but encountered water, you need to use Emulsion in wet hole. Increase the number of wet holes in increments of 10 and calculate the explosive and total cost. Plot a graph between the number of wet holes and cost. Determine the number of wet holes at which the total cost will be equal to the cost if the mine has adopted emulsion design (with smaller diameter holes) 1. Using ANFO Hole diameter = 10 inches, Bench heigh = 50ft, SGAnfo = 0.82, Rock density = 0.0827 tons/ft 3, Burden = 20 ft, Spacing= 24ft, Subdrill =7 ft, Stemming = 16ft, Drilling cost = $8/ft ANFO = $0.31/1b, Number of holes = 100, Booster (11b) = $3.00 (use 0.2% of explosive charge), Explosive caps = $2 per unit 2. Using Emulsions Hole dimeter = 6 inches, Bench height = 50ft, SGEmulsion = 1.21, Rock density = 0.0827 tons/ft 3, Burden = 24ft, Spacing= 28 ft, Subdrill = 7 ft Stemming = 17 ft. Drilling cost = $ 8.5/ft, Emulsion = $0.48/1b, Number of holes - TBD Calculate the powder factor of this design Assuming that the same tons of rock will be blasted by both design, how many holes (round it to nearest whole number) will need to be drilled using Emulsion? Calculate: Explosive cost (Including Booster & cap) per hole Drilling cost per hole Cost of complete shot If you drill for Anfo but encountered water, you need to use Emulsion in wet hole. Increase the number of wet holes in increments of 10 and calculate the explosive and total cost. Plot a graph between the number of wet holes and cost. Determine the number of wet holes at which the total cost will be equal to the cost if the mine has adopted emulsion design (with smaller diameter holes) 1. Using ANFO Hole diameter = 10 inches, Bench heigh = 50ft, SGAnfo = 0.82, Rock density = 0.0827 tons/ft 3, Burden = 20 ft, Spacing= 24ft, Subdrill =7 ft, Stemming = 16ft, Drilling cost = $8/ft ANFO = $0.31/1b, Number of holes = 100, Booster (11b) = $3.00 (use 0.2% of explosive charge), Explosive caps = $2 per unit 2. Using Emulsions Hole dimeter = 6 inches, Bench height = 50ft, SGEmulsion = 1.21, Rock density = 0.0827 tons/ft 3, Burden = 24ft, Spacing= 28 ft, Subdrill = 7 ft Stemming = 17 ft. Drilling cost = $ 8.5/ft, Emulsion = $0.48/1b, Number of holes - TBD

Answer rating: 100% (QA)

Solution To calculate the ponder factor we need to first calculate the volume of the rock that needs to be blasted The volume of the rock can be calculated using the formula Volume Hole diameter 22 x ... View the full answer