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EARTHWORK ESTIMATING - SCRAPER WORK <br /> TASK DESCRIPTION: <br /> HOURLY EQUIPMENT COST: <br /> Machine make and model 6 3 7 _o attachments <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 /> 1 /3 y. G-s' - I - N/A Af -, <br /> 2 <br /> 3 <br /> Total = a, i r. <br /> $ a// /hr, divided by / shifts/day = $ o?/ / average total equip. cost/hr. <br /> MATERIAL OUANTITIES: <br /> BCY x swell factor = LCY <br /> Verification method(s) used <br /> HOURLY PRODUCTION: <br /> Haul distance = , ft. , return distance = yo ft. , altitude = a o o ft. <br /> Total resistance haul : a % rolling res. plus — 7 grade res. (+or-) <br /> Total resistance (return) : % rolling res. plus 7 % grade res. (+or-)= <br /> Note: for grade resistance, (+) = unfavorable, T_-T'- favorable (downhill ) <br /> Cycle time: Load (627B = 0.8 min. , 637D = 0.9 min., 657E = 1 .0 min) = 9 min. <br /> Haul - see distance vs. time tables in Section VII = i. i min. <br /> Maneuver and spread (same for all models) = G min. <br /> Return - see distance vs. time tables in Section VII = min. <br /> total cycle time = y_2 min./cycle <br /> 60 min./hr divided by y, 3 minutes/cycle = /_ g cycles/hr. <br /> 3_ LCY rated bowl capacity (heaped x /J 9 cycles/hr. _ g LCY/hr. (unadj. ) <br /> yea LCY/hr. x job efficiency* �� altitude adj. =322- LCY/hr (adj. ) <br /> *average efficiency for all shifts utilized <br /> Fleet production = no. scraper used x 23,2 LCY/hr/scraper LCY/hr/fleet <br /> JOB COST: <br /> a7-), 7S-F LCY divided by 7F F LCY/hr. = -273 total job hours <br /> total material vol . fleet prod. <br /> $ a// /hr. avg. scraper cost x _�_ scrapers used = $ C_?2 fleet cost/hr <br /> �73 hrs x $ 632 /hr. = $ /7o24da7 Total Job Cost <br /> total job t mi e hourly eel <br /> unit cost/LCY = $ a oS o y 3 divided by - _ $ o, 7,5' /LCY <br /> total job cost total m terial vol . <br /> 4 c9?_3 u /./8 <br />