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EARTHWORK ESTIMATING - TRUCK/LOADER TEAMS TASK DESCRIPTION: ~a..,,,,~, L..,..~s ~ ~._h ~~'% HOURLY EQUIPMENT COST: Truck make and model Loader make and mode C. adjusted Operator Cost Per Hour hours days base base shift total shift) per per rental I operating I wage I overtime I premium I equip. no, day week rate/hr, cost/hr rate/hr adjustment ad.i. cost/h 2 3 ~ ~ tots truc cost r. _ /p~ , y J .- total loader cost/h r. = E x.20. i~ S /hr. divided by shifts/day = E average truck cost/hr. E /hr, divided by shifts/day = E average loader cost/h r. MATERIAL QUANTITIES: Sank volume = BCY x swell factor = 8$ D o LCY Verification met od s used HOURLY PP.ODUCTION: Haul distance = oo ft., return distance = .~e'Re ft., altitude = $"8s+ ft. Total resistance au ,~ ~ rolling resT ~ "< grade res. +or- _ // Total resistance (return): .2 ~ rolling re s, plus _p grade res. (+or-)= Note: for grade resistance, (+) = unfavorable, favorable (downhill) Truck capacity 3p .~ LCY (nominal heaped) _ . Loader capacity = ~~ LCY (nominal heaped) x /,o bucket fill factor from fill factor a ,lustment table in Section VII = ~~t'Y/bucket load (adj. cap'; No. of loader passes required to fill truck = ~_ (round to nearest whale no.) Adjust truck capacity = ,~o. t LCY Loader cycle time: basic cyc a oad, maneuver and dump) = min. 1st pass = 0.1 min (bulk of 15t pass completed urines' g truck exchange 2nd ---------- . G min 3rd ---------- 6 min Loader cycle corrections: 4th ---------- 'G min = 5th ---------- min 6th ---------- min _ /• ~ min total load time Truck cycle time: Exchange time ---------- Load ------------------- Haul ------------------- Maneuver at dump ------- Dump ------------------- Return ----------------- 7 min. 1 4 ,7 .a /. ~ time