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• 20 yd3 highway end-dump truck @ $70/hour <br />• • Caterpillaz 225 excavator with thumb @ $110/hour <br />L.1.1 Fill Placement <br />Equipment cost: <br />4 -Caterpillar 627 scrapers @ $700/hour <br />Total hourly cost = $700/hour <br />Production Rate: <br />Fill to be placed with scrapers w/o push loading. <br />Average haul distance = 1,200 feet. <br />Resistance (grade and rolling) = 8% <br />Cycle time = 3.5 min (loaded), 2.25 min (empty), 5.75 min (total) <br />Bulking factor = 1.1 <br />Haul Volume = 20 yd3/1.1 = 18.2 pcy <br />Unadjusted production rate: <br />(18.2 pcy/load)(1 load/5.75 min))60 min/hour)(4 scrapers) = 760 <br />pcy/hr <br />Production adjustments = 0.83 for job efficiency, 0.92 for operating altitude <br />(760 pcy/hr)(0.83)(0.92) = 580 pcy/hr <br />Unit Cost = ($700/hour)(1 hour/S80pcy) _ $1.21/pcy <br />• L.1.2 Backfill Grading <br />Equipment cost: <br />1- Caterpillaz D-8N dozer @ $135/hour <br />Total hourly cost = $135/hour <br />Production Rate: <br />Average push distance = 50 feet. <br />Unadjusted production rate: <br />1,400 pcy/hr <br />Production adjustments (per previous cost estimates): <br />Job efficiency = 0.83 <br />Slope adjustment factor = 1.2 <br />Operating altitude = 1.0 <br />Average operator efficiency = 0.75 <br />Material type adjustment (loose stockpile) = 1.2 <br />Weight correction factor = 1.0 <br />Adjusted production rate <br />_ (1,400 pcy/hr)(.83)(1.2)(1.0}(0.75)(1.2)(1.0) = 1,255 pcy/hr <br />Coverage assuming average 1.5-foot thickness of dozer grading required over fill <br />azea: (1.5 feet)(43,560 ft2/acre)(lpcy/27ft3) = 2,420 pcy/acre <br />Unit Cost = ($135/hour)(1 hour/1,255 pcy)(2,420 pcy/acre) _ $260/acre <br />Battle Mountain Resources, Inc. L-2 Telesto Solutions, Inc. <br />PiPmjects~213-Newmont(Santuis)~SaN.uis~Pe~mu Ametgment- West Prt Maeagetcem~PetmitAmeMmeN_JJ.Jac /Uty2~ <br />