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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />Task # : 09o State :Colorado PermiUjob # : M-1977-342 <br />Date : 06/27/2002 County : Grantl Abbreviation :none <br />User : ESC Site :Henderson Mine Filename : M342-090 <br /> <br />Agency or organization name : DMG <br />Permit or other job action :Reevaluate amount of required bond <br />Task description : Aip Perimeter Road <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D8R - SSU <br />Blatle type : Semi-Universal <br />Attachment no. 1 : ROPS Cab <br />Attachment no. 2 : 1-shank ripper <br /> Utilization <br />Cost Breakdown Ownership cosUhour : $50.41 NA <br />Dozer operating cosUhour : $65.98 100 <br />Ripper operating cosUhour : $9.78 100 <br />Operator cost/hour : $2799 NA <br />Total unit cosUhour : $154.17 Total fleet cost/hour <br />MATERIAL QUANTITIES <br />Alternate methods - <br />Seismic: NA NA <br />Area : 94.00 acres <br />Selected estimating method : Area <br />$308.33 <br />Load factor : NA Bank volume : NA BCY <br />Rip depth (h) : 200 Votume : 303,307 8CY or CCY <br />Source of estimated quantity :Annual Reclamation <br />Source of estimated load factor : NA <br />HOURLY PRODUCTION <br />Alternate methods - <br />Seismic : Seismic velocity : NA teeVsecond <br />Unadjusted production : NA cu. yds./hour <br />Area : Avg. ripping depth <br />Average ripping width <br />Average ripping length <br />Average dozer speed <br />Average maneuver time <br />Production per unit area <br />Unadjusted production <br />2.00 feeUpass <br />5.56 feeUpass <br />100.00 feeUpass <br />88.00 feeUminute <br />0.25 minutes/pass <br />0.552 acres/hour <br />1,782.44 cu. yds./hour <br />Unadjusted production <br />per selected method : 1,782.44 cu. yds./hour <br />Site altitude: 8,500 feet <br />Altitude adjustment ; i.00 (Cat H8) <br />Job efficiency factor: 0.83 (1 shifUday) <br />Net job correction : 0.83 multiplier <br />Adjusted unit production : 1,479.43 cu. yds./hour <br />Adjusted fleet production : 2,958.85 cu. yds./hour <br />JOB TIME AND COST <br />Fleet size : 2 dozers) Total job time <br />Unit cost : $0, i04 per cu. yd. Total job cost <br />102.51 hours <br />$31,507 <br />Horsepower: 305 <br />Shift basis : 1 per day <br />Data source : (CRG) <br />