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EARTHWORK ESTIMATING HYDRAULIC EXCAVATOR/FRONT SHOVEL WORK <br /> t <br /> =SK DESCRIPTION: <br /> ----------------------- <br /> HOURLY EQUIPMENT COST:Machine make and model 2 Z -� attachments: <br /> • <br /> adjusted Operator Cost Per Hour ift total <br /> "da <br /> ys base base <br /> er rental operatinq wage overtime premium cost equip. <br /> ek rate/hr. cost/hr rate/hr adjustment NSA• :7, <br /> �=o <br /> g C <br /> o a = �~ <br /> $__Z2 /hr. divided by / shifts/day = $ <br /> 77 8o average- equipment cost/hr. <br /> MATERIAL QUANTITIES: <br /> Bank volume = BCY or CCY x <br /> swell ;factor = 9 q 3q g LCY <br /> Verification methods used <br /> HOURLY PRODUCTION: <br /> Cycle Time ,,_seconds/cycle (from cycle time table in Section VII) <br /> ' � <br /> • Rated bucket payload (from Section III) _ �� _ LCY (nominal heaped) <br /> Tyne of material ,C �-factor <br /> altitude = �� <br /> Bucket fill f actor from f table Sectl& V I - <br /> LCY <br /> LCY x / 2� <br /> rated payload fill factor adjusted payload <br /> 3,600 seconds/hr divided by <br /> z o seconds/cycle cycles per hour <br /> LCY/hr (unadjusted) : <br /> 2 adjusted bucket payload x cycles/hr LCY/hr <br /> Adjusted hourly production:: job efficiency* x . 9.2. altitude adj. _ /7/p LCY/hr <br /> 2 2 LCY/hr x <br /> *average for all shift—s utilized <br /> JOB COST: <br /> 3� 9 LCY divided by /7/. dr LCY/hr = 7 hrs <br /> 9 9 adj. prod. total job time <br /> total material vo ume <br /> hrs x $ 7 7• �=n /hr = $ y Total Job Cost <br /> tot. job time avq. equip. cost <br /> divided by SSA 9 = $ `�_/LCY <br /> unit cost/LCY = $tota ljob�cost tot latot material vol. <br /> 42 <br />