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CIRCES Cost Estimating Software <br />BULLDOZER WORK <br />PROJECT IDENTIFICATION <br />PermiUjob# : C1981-010 <br />Task #: 129 State :Colorado <br />Date : 12/07/2007 County : Moffat Abbreviation :none <br />User : JHB <br />Filename : C010-129 <br />Site :Trapper Mine <br />tion name : <br />i Division Of Reclamation, Mining And Safety <br />za <br />Agency or organ <br />Permit or other job action : RN5 <br />Task description : Backfill East F (Z) pit highwall (prey. cast blast) <br /> <br />.::::::::.......:.........:. <br /> <br />HOURLY EQUIPMENT COST <br />..................... <br /> <br />Basic machine : Cat D11 R - 11 SU (2005) Horsepower : <br /> <br /> <br />50 <br /> Blade type : Semi-Universal <br /> Attachment no. 1 : ROPS Cab Shift basis : 3 per day <br /> Attachment no. 2: I-shank ripper <br /> Data source : (CRG) <br /> Utilization % <br />Cost Breakdown : Ownership cost/hour : $85.58 NA <br /> Operating cost/hour : $224.59 100 <br /> Ripper op. cosUhour : $2.30 15 <br /> Operator cost/hour : $33.03 NA <br /> Total unit cost/hour : $345.50 Total fleet cost/hour : $1,382.00 <br /> <br />MATERIAL QUANTITIES <br />Initial Swell Loose <br />volume : 246,354 CCY factor : 1.165 volume : 287,002 LCY <br />Source of estimated volume : TR06 task 129, prev. cast blast <br />Source of estimated swell factor : Caterpillar Handbook Edition <br />HOURLY PRODUCTION <br />Average push distance : 75 feet <br />Unadjusted hourly production : 3,545.9 LCY/hr <br />Material consistency description <br />Partly consolidated stockpile <br />Average push gradient : 4.00 % (? <br />Average site altitude : 7,500 feet <br />Material weight : 2,900 Ibs/LCY <br />Weight description : <br />necomnosed rock - 50% Rock, 50% Earth <br />Job Condition Correction Factors <br />operator skill : <br />0.85 Source <br />(user) <br />Material consistency : 1.10 (Cat HB) <br />Dozing method : 1.10 (50% sl) <br />Visibility: 1.00 (avg.) <br />Job efficiency : 0.79 (3shifts Ida <br />Spoil pile : 0.90 (ssd-fc) <br />Push gradient : 1.09 (Cat HB) <br />Altitude : 1.00 (Cat HB) <br />Material weight : 0.79 (Cat HB) <br />Blade type : 1.00 <br />Net correction : 0.63 <br />Adjusted unit production : 2246.18 LCY/hr <br />Adjusted fleet production : 8,984.70 LCY/hr <br />JOB TIME AND COST <br />Fleet size : 4 Dozer(s) Total job time : 31.94 Hours <br />Unit cost : $0.154 /LCY Total job cost : $44,146