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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task #: 04a State : Colorado Permit/job #:M-2008-012 <br />Date <br />User <br />0610212010 <br />GRM <br />County :Montrose <br />Site :Last Chance Mine <br />Agency or organization name: DRMS <br />Permit or other job action :final reclamation liability estimate <br />Task description :rip compacted areas <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D7R DS Series 11 - 7SU Horsepower : 240 <br />Blade type : Semi-Universal <br />Attachment no. 1 : ROPS Cab Shiftbasis : 1 per day <br />Attachment no. 2 :3-shank ripper <br /> Data source : (CRG) <br /> Utilization % <br />Cost Breakdown : Ownership cost/hour : $45.82 NA <br /> Dozer operating cost/hour : $49.75 100 <br /> Ripper operating cost/hour : $4.09 100 <br /> Operator cost/hour : $38.54 NA <br /> Total unit cost/hour : $138.21 Total fleet cost/hour : $138.21 <br /> <br />MATERIAL QUANTITIES <br /> Selected estimating method : Area <br />Alternate methods - <br />Seismic : NA NA Load factor : NA Bank volume : NA BCY <br />Area : 6.00 acres Rip depth (ft) : 2.00 Volume : 19,360 BCY or CCY <br /> <br />Source of estimated quantity :standard depth /mine, exploration area+roads <br />Source of estimated load factor :NA <br /> <br />HOURLY PRODUCTION <br />Alternate methods - Job Condition Correction Factors - <br />Seismic : Seismic velocity : NA feet/second Unadjusted production <br />Unadjusted production : NA cu. yds./hour per selected method : 2,083.79 cu. yds./hour <br /> <br />Area : Avg. ripping depth : 2.00 feet/pass Site altitude : 6,300 feet <br />Average ripping width : 6.50 feet/pass Altitude adjustment : 1.00 (Cat HB) <br />Average ripping length : 100.00 feet/pass Job efficiency factor : 0.83 (1 shift/day) <br />Average dozer speed : 88.00 feet/minute Net job correction : 0.83 multiplier <br />Average maneuver time : 0.25 minutes/pass <br />Production per unit area : 0.646 acres/hour Adjusted unit production : 1,729.54 cu. yds./hour <br />Unadjusted production : 2,083.79 cu. yds./hour Adjusted fleet production : 1,729.54 cu. yds./hour <br /> <br />JOB TIME AND COST <br />Fleet size : 1 dozer(s) Total job time : 11.19 hours <br />Unit cost : $0.080 per cu. yd. Total job cost : $1,547 <br /> <br />Abbreviation :none <br />Filename :M012-04a