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~orado Division of Minerals and Geology • <br />ESTIMATING FORM - BULLDOZER RIPPING <br />Task #: 10 Prep. by: ACS Tesk File Name: M393-10 <br />Date: 08/06/95 Permit #: M-77-393 Mine: Jenkins Site <br />Permit Action: Bond reevaluation <br />Task Description: Rip clayey areas and stripped areas a south site <br />HOURLY EQUIPMENT COST <br />_____________________ Basic Machine: Ca[ D7H SERIES I1 Horsepower: 215 <br />Blade Type: UNIVERSAL -------~--- <br />Attachment #1: ROPS Cab Shift Basis: 1/day <br />Attachment #2: 3-shank ripper -------~•-- <br />Cost/Hr Breakdown: Utilization X (code 0:>li) <br />---^------------- ownership = 538.70 N/A <br />operating/overhaul - dozer = E37.95 100 <br />-ripper = E4.64 100 <br />operator = 522.95 N/A <br />Total egpt, unit cost/hr = 5104.23 Total fleet cost/hr: E104.:3 <br />MATERIAL DUANTITI ES <br />___________________ Selected method Area <br />Seismic Load Bank ------------- <br />method: N/A N/A Factor N/A Vol une N/A BCY <br />Area -____---__- _-_____ ______--___ <br />method: 8.00 Acres Rip Depth: 1.00 Votume 12,907 BCY or [CY <br />___________ _-____- ____-______ <br />Source of quantity rake-off: Field measurements and TR-002 map <br />Source of mat. load factor: N/A <br />HOURLY PRODUCTION <br />______________ __ <br />_________________ <br />Seismic Method - Seismic velocity of material: N/A feet/sec. <br />-------------- - Unadj used hourly production: N/A BCY or CCY/hr <br />Area Method - Avg. ripping depth per pass: 1.00 feet <br />----------- - Avg, ripping width per pass: 6.50 feet <br />- Avg. ripping length per pass: 200.00 feet <br />- Avg. velocity of machine 88.00 feet/min. <br />- Avg. machine menewer time 0.25 minutes <br />- Hourly prod. per unit area 0.710 acres/hr <br />- Unadjusted hourly production: 1,145.15 BCY or CCY/hr <br />Correction Factors -Unadjusted production = 1,145.15 BCY or CCY/hr <br />------------------ -Site altitude = 5,750 feet <br />- Altitude adjustment = 1.00 (Cat tbL) <br />- Job efficiency factor = 0.83 (1sh/day) <br />- Net correction = 0.83 multiplier <br />- Adjusted production = 950.47 BCY or CCY/hr <br />- Fleet production = 950.47 BCY or CCY/hr <br />JOB COST =_______ <br />Fleet Size 1 <br />________ Dozers) Total Job Time: 13.58 <br />____ Hours <br /> <br />Unit Cost <br />50.110 <br />fLCY <br />Total <br />Job <br />Cost: __ <br />_____ <br />51,415.35 <br />