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EARTHWORK ESTIMATING - SCRAPER WORK <br /> TASK DESCRIPTION: Ado At^-re?2/..O. �-M�•�?� -- - <br /> • /✓�id r <br /> 'On�'�rak wT <br /> HOURLY:EQUIPMENT COST: <br /> Machine make and model C-3-7 0 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 ad . <br /> 1 / y. Cr qe N/A <br /> p n <br /> 2 <br /> 3 <br /> Total /hr. <br /> $ All /hr. divided by �_ shifts/day = s a/ / average total equip. cost/hr. <br /> MATERIAL QUANTITIES: <br /> BCY x swell factor = .1 ?;a 751 LCY <br /> Verif ication method(s) used rem - <br /> HOURLY PRODUCTION: <br /> Haul distance = o ft., 'return distance 1244e�ft., altitude = 00 o ft. <br /> Total resistance hau a % rolling res. plus — 7 grade res. +or- _ —S' <br /> Total resistance (return) : 2 9� rolling res. .plus % grade res. (+or-)= <br /> Note: for grade resistance, (+) = unfavorable, 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 soread (same for all models) min. <br /> Return - see distance vs. time tables in Section VII min. <br /> total cycle time = q, 2 min./cycle <br /> 60 min./hr divided by f-3- minutes/cycle 9 cycles/hr. <br /> L LCY rated bowl capacity (heaped x /. . 9 cycles/hr. _ �',�o. g LCY/hr. (unadj.) <br /> y,2!.j LCY/hr. x f-cl job efficiency* 1_altitude adj. =3'Z2 LCY/hr (adj.) <br /> *average efficiencv for all shifts utilized <br /> Fleet production = 2 no. scraper used x ,?, -3 LCY/hr/scraper LCY/hr/fleet <br /> JOB COST: <br /> a 7.2. 73- LCY divided by LCY/hr. = a1 73 total job hours <br /> total material vol. fleet prod. <br /> $ a// /hr. avg. scraper cost x � — scrapers used = $ Cam_ fleet cost/hr <br /> ,1,73 hrs x $ G 3 3 /hr. _ $ %7�21,�a S <br /> Total Job Cost <br /> total ,lob time hourly, fleet cost <br /> unit cost/LCY = $ ;?0Z osr ? divided by -?-7—'7 71 7.5' /LCY <br /> total job cost total material vol. <br /> 4 973 x iie <br /> 28 <br />