Use the information in the table below to answer the following questions. Show the formula’s you use and your calculat
Posted: Wed Jul 06, 2022 6:15 am
Use the information in the table below to answer the following questions. Show the formula’s you use and your calculations:a. Determine the shovel requirements [12]b. Determine the truck replacement period in years [16]c. Determine drill rig requirements for the 140mm diameter holes [10]Shovels Trucks DrillsAv % 90% 86% 60%Ut % 95% 85% 70%P1 % of DOH % 5% 10% 40%NT Days/yr 20 30 30Truck payload t 95Truck cycle time Minutes 40Ore production Mtpa 6 6 6Waste production Mtpa 12 12 10Narrow bench waste Mtpa 2 2 2Total production Mtpa 20 20 18Expected life per machine Hr 80000 60000 25000Drill yield ore (311mmø) t/m 50Drill yield waste (311mmø) t/m 120Presplit yield (140mmø) t/m 100Buffer blast yield (140mmø) t/m 20Penetration rate (311mmø) m/hr 13.5Penetration rate (140mmø) m/hr 17.0Ore loading rate t/hr 750Waste loading rate t/hr 800Narrow bench loading rate t/hr 550