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<br />I <br /> <br />TA 3.9.1 EARTHWORK ESTIMATING HYDRAULIC EXCAVATOR Task 1 <br />TASK DE RIPTION • Pull road fill material to base of cut slope so that dozer <br />can drift material into place and compact fill. <br />HOURLY EQUIP NT COST <br />MACHINE E AND MODEL - Cat 325 <br />OWNERSHIP COST/hr 30.01 <br />OPERATING COST/hr 28.89 <br />ADJUSTMENTS none <br />OPERATOR COST/hr 23.13 <br />MACHINE COST $82.03 <br />MATERIAL QUANTITIES <br />BANK VOLUM 22,316 CUBIC YDS <br />x 1.10 SWELL = 24,547.6 CUBIC YDS <br />VERIFlCATION OF VOLUMES FROM FlGURES 3.1-2 THROUGH 3.i-7 <br />AS DETAILED ON TABLE 3.9-2 <br />EXCAVATOR HOURLY PRODUCTION <br />ALTITUDE <br />CYCLE TIME <br />BUCKET PAYLOAD <br />TYPE OF MATERIAL <br />BUCKET RLL FACTOF <br />ADJUSTED BUCKET P <br />CYCLES PER HOUR <br />5,600 FEE CORRECTION FACTOR none <br />0.35 MIN S for average conditions <br />1.27 LCY nominal heaped <br />Wet ex vated earth <br />0.95 <br />4YLOAD = 1.21 LCY <br />= 142.86 50 minutes per hour) <br />ADJUSTED HOURLY PRODUCTION = \ 172.36 LCY/HR <br />• <br />JOB COST <br />TOTAL MATERIAL VOLUME 24,548 CU C YARDS . <br />EXCAVATOR PRODUCTION 172.36 CUBIC ARDS PER HOUR <br />NUMBER OF EXCAVATORS 1 <br />HOURS TO COMPLETE JOB 2.42 <br />TOTAL MACHINE COST $ 2.03 <br />TOTAL JOB COST <br />COST PER UNIT VOLUME <br />Mu Vol I <br />Page - 2 <br />HOURS <br />$11,682.95 <br />$0.476 /LCY <br />8/30/96 <br />