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CIRCES Cost Estimation Software <br />• BULLDOZER RIPPING WORK <br />Task # : 008 <br />Date : 12/14/2004 <br />User: JRS <br />State :Colorado <br />County :Las Animas <br />Site :Lorencito Canyon Mine <br />Perrnit/job # : C-96-084 <br />Abbreviation :none <br />Filename : C084-008 <br />Agency or organization name :Colorado Division O/ Minerals And Geology <br />Permit or otherjob action :Current Permitted Estimate <br />Task description :Rip Jeff Canyon Topsoil Stockpile Base <br />HOURLY EQUIPMENT COST <br /> Basic machine : Cat D10R - IOSU Horsepower : 570 <br /> Blade type : Semi-Universal <br /> Attachment no. 1 : ROPS Cab Shift basis : 1 per day <br /> Attachment no. 2 : 1-shank ripper <br /> Data source : (CRGJ <br /> Utilization <br />Cost Breakdown : Ownership cosUhour : $69.75 NA <br /> Dozer operating cost/hour : $124.53 100 <br /> Ripper operating cosUhour : $13.24 100 <br /> OperatorcosUhour: $31.76 NA <br /> Total unit cosUhour : $239.28 Total fleet cosUhour : $478.57 <br />• <br />MATERIAL QUANTITIES <br /> Selected estimating method : Seismic <br />Altemate methods - <br />Seismic : 8,900 CCY Load factor : 0.875 Bank volume : 7,788 BCY <br />Area : NA acres Rip depth (ft) : NA Volume : NA BCY or CCY <br /> <br />Source of estimated quantity :Operator Estimate <br />Source of estimated load factor :CAT Handbook <br />,s .:... ..., ....~... ... ... . <br />HOURLY PRODUCTION ;. ,::: ;: z: <br />Alternate methods - <br />Seismic: Seismic velocity: 5,000 feet/second <br />Unadjusted production : 673.60 cu. yds./hour <br />I• <br />Area : Avg. ripping depth : NA feeUpass <br />Average ripping width : NA feeUpass <br />Average ripping length : NA feetpass <br />Average dozer speed : NA feeUminute <br />Average maneuver time : NA minutes/pass <br />Production per unit area : NA acres/hour <br />Unadjusted production : NA cu. yds.mour <br />JOB TIME AND COST <br />Fleet size : 2 dozers) <br />Unit cost : $0.428 per cu. yd. <br />Unadjusted production <br />per selected method : 673.60 cu. yds./hour <br />Site altitude : 7,000 feet <br />Altitude adjustment : 1.00 (Cat HB) <br />Job efficiency factor : 0.83 (1 shiWday) <br />Net job correction : 0.83 multiplier <br /> <br />Adjusted unit production : 559.09 cu. yds./hour <br />Adjusted Fleet production : 1,118.18 cu. yds./hour <br />Total job time : 6.96 hours <br />Total job cost : $3,333 <br />Z3 -17 <br />