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• THWORK ESTIMATING - SCRAPER W~ <br /> <br />HOURLY EQUIPMENT COST: <br />Machine make & model l0 3 7 U Attachments_ <br />No. shifts per day ) Labor Zone / ~ 8 <br />Ownership cost/hr =$ Operating cost/hr =$ <br />Tetal equipment costlhr =$ i8s, (add push dozer cost <br />MATERIAL QUANTITIES: <br />Operator cost/hr =$_ <br />if required for job) <br />BCY x swell factor = oZCo 00 LCY <br />Source of quantity take-off (map no. , permit page no. ) es~,'.,-,tilv,( <br />" estimated swell factor <br />f4ethod(s) used to verify volume <br />HOURLY PRODUCTION: <br />Haul distance = 5a&0 ft., return distance = Sad~O ft., altitude = (0000 ft. <br />Total resistance (haul):± U. % rolling res. plus - % grade res.(+/-)_ ~°7, 3 <br />Scraper capacity: LCY struck, 3 ~ LCY heaped. Avg. capacity = ,~/ LCY <br />Cycle time: Load = o, ~ min., haul = d•3 min., maneuver & spread = U.') min., <br />return = /•9 min. Total cycle time = S.b minutes <br />60 minutes/hr divided by s , g min./cycle = / p.3 cycles/hour <br />/G•,7 cycles/hr x 3 / LCY avg. scraper capacity = 3,~ 0,7 LCY/hr (unadjusted) <br />ddo.7 LCYJhr x o,8y job efficiency* x C.9~ altitude adj. = x58.1,1 LCY/hr(adjusted) <br />*average job efficiency for all shifts utilized <br />Fleet production = ~ no, scrapers used x a 58,x, LCY/hr/scraper = S/?.~-LCY/hr/fleet <br />JOB COST: <br />oZ (r fJU LCY divided by 5~ 7.c"i. LCY/hr/fleet = S• O total job hours <br />$ 1 `S ~ /hr scraper cost x oZ scrapers used = $ .~7/, ~b fleet cost/hr <br />S. o job hours x $ 37/, G~' fleet cost/hr = $ / izSp, y p total job cost <br />Unit cost =$ ~$S $. ~! 0 divided by oZ G o O LCY =$ 0. ?/ /LCY <br />total job cost total material vol. <br />TASK N0. ~( _ DATE 2 - s - 8 ~ PREPARED BY C R ~/ PERMIT NO. <br />