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EARTHWORK ESTIMATING - HYDRAULIC EXCAVATOR/FRONT SHOVEL WORK <br /> A <br /> TASK DESCRIPTION- <br /> HOURLY EQUIPMENT COST: <br /> Machine make and model 2 2_ 3 attachments: <br /> adjusted Operator Cost Per Hour <br /> hours days base base shift total <br /> shift per per rental operatinq wage overtime premium equip. <br /> no. day week rate/hr. cost/hr rate/hr adjustment adj. cost/hr <br /> 1 ?_ IS . a o . "�'a- I N/A 7 7 La <br /> 2 If I if <br /> 3 <br /> total = <br /> $ 7?S-,:> /hr. divided by / shifts/day = $ 77 8 o average equipment cost/hr. <br /> MATERIAL QUANTITIES: <br /> Bank volume = BCY or CCY x swell ,factor = 9 % , 3� LCY <br /> Verification method s used <br /> HOURLY PRODUCTION: <br /> Cycle Time = 2 o seconds/cycle (from cycle time table in Section VII) <br /> Rated bucket payload (from Section III) _ s-' LCY (nominal heaped) <br /> Type of material altitude ft. <br /> Bucket fill factor from fill factor table in Section VIII = <br /> 2_S-- LCY x _ / 2_�— LCY <br /> rated payload fill factor adjusted payload <br /> 3,600 seconds/hr divided by 2 o seconds/cycle = /� o cycles per hour <br /> LCY/hr (unadjusted) : <br /> /, z f adjusted bucket payload x cycles/hr = 2 26-"' LCY/hr <br /> Adjusted hourly production: <br /> 22� LCY/hr x • e-S job efficiency* x 9--2- altitude ad,i. = /7/. LCY/hr <br /> *average for all shifts ut7ized <br /> JOB COST: <br /> z9 3� 9 LCY divided by /'2/, e LCY/hr = ,�7 hrs <br /> Totalm-`ateria voTume adj.proms total job time <br /> r'78 Z hrs x $ 7 ;?. dpo /hr = $ y Total Job Cost <br /> tot. job time avq. equip. cost <br /> unit cost/LCY = $ /, 5�3 divided by $ -</,5-- /LCY <br /> total 'job cost total 'material vol . <br />