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• i <br />Colorado Division of Minera Ls and Geology <br />ESTIMATING FORM - BULLD02ER RIPPING <br />___________________________________ <br />Task #: 5 Prep. by: SSS Task File Name• N011-8 <br />Date; 12/10/97 Permit #: X94-011 Mine: Yest End Gravel Pit No. 1 <br />Permit Action: Conversion No. 1 Application <br />Task Description: Rip North Centrl Unit Pit Floor <br />HOURLY EQUIPMENT COST <br />_____________________ Basic Machine: Cat D9N Horsepower: 370 <br />Blade Type: SEMI-UNIVERSAL ---------- <br />Attachment #1: ROPS Cab Shift Basis: 1/day <br />Attachment #2: 3-shank ripper ---------- <br />Cost/Hr Breakdown: Utilization X (code bsli) <br />----------------- ownership = 543.41 N/A <br />operating/overhaul - dozer = 574.86 100 <br />•ripper = 57.69 100 <br />operator = 522.95 N/A <br />Total egpt. unit Lost/hr = 5148.90 Total fleet cost/h r: 5148.90 <br />MATERIAL OUANT IT IES <br />___________________ Selected method :Area <br />Seismic Load Bank ------------- <br />methotl: N/A N/A Factor N/A Volume N/A BCY <br />Area __________- _____-- _____-_____ <br />method: 0.50 Acres Rip Depth: 1.50 Volume 1,210 BCY or CCY <br />Source of quantity take-off: Exhibit C - Mining PLan Map <br />Source of mat. load factor: N/A <br />HOURLY PRODUCTION <br />Seismic Method - Seismic velocity of material: N/A feet/sec. <br />-------------- - Unadjusted hourly production: N/A BCY or CCY/hr <br />Area Method - Avg. ripping depth per pass: 1.50 feet <br />----------- - Avg. ripping width per pass: 7.67 feet <br />- Avg. ripping length per pass: 200.00 feet <br />- Avg. velocity of machine 88.00 feet/min. <br />- Avg. machine maneuver time 0.25 minutes <br />- Nourly prod. per unit area 0.838 acres/hr <br />- Unadjusted hourly production: 2,026.91 BCY or CCT/hr <br />Correction Factors -Unadjusted production = 2,026.91 BCY or CCY/hr <br />--------------- --- -Site altitude = 5,800 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 = 1682.33 BCY or CCY/hr <br /> - Fleet production = 1682.33 BCY or CCY/hr <br />JOB COST =_______ <br />Fleet Size 1 Dozers) Total Job Time: 0.72 Hours <br /> <br />Unit Cost -_______ <br />50.089 /CCY Total <br />Job Cost: ___________ <br />5107.10 <br />