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CIRCES Cost Estimating Software <br />HYDRAULIC EXCAVATOR WORK <br />PROJECT IDENTIFICATION >;:;.;:.:_.._ .............. ....................._......... _. _. _.._._......__........................_.................... ......................._....... ...... . <br />Task #: 23a State : Colorado Permit/job #: C -92 -080 <br />Date <br />User <br />05/20/2008 <br />TA <br />County La Plata <br />Site: Carbon Junction Mine <br />Agency or organization name: CDRMS <br />Permit or other job action : RN -03 <br />Task description Excavate CJ Canyon Channel - hard digging section <br />......... . . . .................. <br />HOURLY EUIPMENT COST :::::::....................................................................................................................................................... ............. <br />......................................................................................................................................................:.:.:..:..:: ::::::::::::::::::::::::::::::: <br />Q <br />Machine description : Cat 330C L <br />Horsepower: 244 <br />Weight (MT) : 33.72 <br />Cost Breakdown : <br />Utilization % <br />Source <br />Ownership cost/hour: <br />$45.61 <br />NA <br />Shift basis : <br />1 per day <br />Operating cost/hour: <br />$61.06 <br />100 <br />Data source : <br />(CRG) <br />Operator cost/hour : <br />$32.96 <br />NA <br />multiplier <br />Total unit cost/hour : <br />$139.63 <br />Total fleet cost/hour : <br />$139.63 <br />MATERIAL QUANTITIES <br />Adjusted hourly fleet production : <br />157.08 LCY /hour <br />Initial <br />Swell <br />::::::.......................................................................... ............. <br />JOB TIME AND COST <br />Loose <br />................................. <br />volume: 4,000 CCY <br />factor : <br />1.125 <br />volume: 4,500 <br />LCY <br />Source of estimated volume TR -12 cost estimate <br />Source of estimated swell factor: CDRMS estimate <br />HOURLY PRODUCTION <br />Excavator Cycle Time (load bucket, swinq loaded, dump bucket, swing empty) <br />Basic job condition description <br />Secondary job condition within basic description <br />Cycle time value <br />Bucket Capacity <br />Rated bucket capacity <br />Bucket fill factor <br />Adjusted bucket capacity <br />AVERAGE <br />AVERAGE <br />0.32 minutes <br />2.25 LCY (heaped) Bucket size class <br />0.45 Rock - Poorly blasted (40% - 5096) <br />medium <br />1.01 LCY <br />Job Condition Correction Factors <br />Source <br />Site altitude : 6,920 feet <br />Altitude adjustment : <br />1.00 <br />(Cat HB) <br />Job efficiency adjustment: <br />0.83 <br />(1 shift/day) <br />Net job correction : <br />0.83 <br />multiplier <br />Unadjusted hourly unit production : <br />189.25 LCY /hour <br />Adjusted hourly unit production : <br />157.08 LCY /hour <br />Adjusted hourly fleet production : <br />157.08 LCY /hour <br />::::::.......................................................................... ............. <br />JOB TIME AND COST <br />................... ................................. ...... <br />................................. <br />............................... <br />Fleet size : 1 excavator(s) <br />Total job time : <br />28.65 <br />hours <br />Unit cost : $0.889 per LCY <br />Total job cost: <br />$4,000 <br />Abbreviation : none <br />Filename :C080 -23a <br />