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EARTHWORK ESTIMATING - TRUCK/LOADER TEAMS <br /> TASK DESCRIPTION: <br /> HOURLY EQUIPMENT COST: <br /> Truck make and model 7; f C <br /> Loader make and model <br /> adjusted Operator Cost Per Hour <br /> hours days base base shift total <br /> shift per per rental operating wage overtime premium equip. <br /> no. day week rate/hr, cost/hr rate/hr adjustment adj. cost/hr <br /> 6 y8 v7 iv •11 / v. <br /> 1 <br /> 7 2 so <br /> 2 <br /> 3 <br /> total truck cost/hr. = S 7 a 5— <br /> total loader cost/hr. = <br /> 05 /hr, divided by / shifts/day = $ Sj os average truck cost/hr. <br /> /hr, divided by shifts/day = $ iy�. average loader cost/hr. <br /> MATERIAL QUANTITIES: <br /> Bank volume = BCY x swell factor = 806 -�z LCY <br /> Verification methods used <br /> HOURLY PRODUCTION: <br /> / a <br /> Haul distance <br /> =s a 8 c, ft. , return distance = Sa�v ft. , altitude = ' ftt <br /> . <br /> Total re si stance7Fa_u-F7. % rolling rest s -2 % grade res. +or- _* F % <br /> Total resistance (return) : a % rolling res. plus % grade res. (+or-)= —5 - % <br /> Note: for grade resistance, (+) = unfavorable, TJ favorable (downhill ) <br /> Truck capacity 3 LCY (nominal heaped) <br /> Loader capacity = �� LCY (nominal heaped) x /o o bucket fill factor from <br /> fill factor adjustment table in Section VII = THY/bucket load (adj. cap'y) <br /> No. of loader passes required to fill truck = (round to nearest whole no. ) <br /> Adjust truck capacity = 30 LCY <br /> Loader cycle time: basic cycle (load, maneuver and dump) = min. <br /> 1st pass = 0.1 min (bulk of 1st pass completed during truck exchange time) <br /> 2nd ---------- c� min <br /> 3rd ---------- 6 min Loader cycle corrections: <br /> 6 <br /> 4th ---------- min <br /> 5th ---------- min <br /> 6th ---------- min <br /> min total load time <br /> Truck cycle time: Exchange time ---------- 7 min. <br /> Load ------------------- i 9 <br /> Haul ------------------- s f <br /> Maneuver at dump ------- 2 <br /> Dump ------------------- <br /> Return ----------------- 3, / <br /> z?. i min_ /rvrl a <br />