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.. .. ::: ... '. ..: ..a: ..~.:~ .5 ~.; <br />HOURLY PRODUCTION sheet 2 of 2 <br />Hauling CaoaciN <br />Scraper Payload (weight) Basis : ~ Scraper Bowl (volume} Basis <br />Material weight: 2,650 pounds/LCY <br />Matedal description : <br />Decomposed rock - 25% Rock, 75% Earth <br />Rated payload : 48,000 pounds <br />Payload capacity : 18.11 LCY <br />Struck volume : 14.00 LCY <br />Heaped volume : 20.00 LCY <br />Average volume : 17.00 LCY <br />Adjusted capacity : 17.00 LCY "' <br />production reflects volume per scraper pair on push-pull models <br />Cycle Time : ob Condition Corrections : Site altitude (ft.) : 7,190 <br /> Scraper Push dozer Source <br />Scraper loading time ' : 0.50 minutes Altitude adj.: 1.000 1.000 (Cat HB) <br />Maneuver and spread time : 0.60 minutes Job efficiency : 0.830 0.830 (Cat HB) <br />• load time per scraper pair on push-pWl motlels Net corzection : 0.830 0.830 <br />Travel time <br />Road condition description :Rutted dirt, little maintenance, no water, 2"tire penetration <br />Haul Route <br />Seg. # Haul distance (feet) Grade (%) Roll. res. (%) Total res. (%) Velocity (fpm) Travel time (min.)'" <br />1 700 0.00 5.00 5.00 2218 0.49 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Haul time : 0.49 minutes <br />Return route <br />"travel lime far each segment is adjusted for acceleredoNdeceleredon. <br />table velocities are max. attainable per total resistance stovm, not average <br />Return 8me <br />Total scraper team cycle time (toad + haul + maneuver and spread + return) <br />Unadjusted unit production/hour : 514.38 LCY/hour "' Adjusted for job conditions <br />Optimal number of scrapers per push dozer : 2 Selected number of scrapers <br />Adjusted single scraper team (unit) hourly production <br />Adjusted multiple scraper team (fleet) houdy production <br />0.40 minutes <br />1.98 minutes <br />426.93 LCY/hour <br />2 scraper{s) <br />853.87 LCY/hour <br />853.87 LCYRtour <br />,~ f , <br />,,. ~.,. <br />JOB TIME AND COST <br /> Fleet size : 1 Team(s) Total job time : 5.67 Hours <br /> Unit cost : 50.789 /LCY Totai job cost : x3,818 <br /> <br />f .....:.........,........~.............................................................. .~....................... .... <br />... <br />..; <br /> <br />