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r • • <br />Colorado Division of Minerals and Geology <br />ESTIMATING FORM - BULLD02ER RIPPING <br />___________________________________ <br />___________________________________ <br />Task #: 4 Prep. by: SSS Task File Name: M011-4 <br />Date: 12/10/97 Permit #: M94-011 Mine: West End Gravel Pit No. 1 <br />Permit Action: Conversion No. 1 Application <br />_____________________________________________________________ <br />Task Description; Rip Stockpile/Processing Area <br />HOURLY EOUI PMENT COST <br />_____________________ Basic Machine: tat 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 OSU) <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 cost/hr = 5146.90 Total fleet cost/h r: 5148.90 <br />_________ _________ <br />MATERIAL DUANTITIES <br />___________________ Selected method Area <br />Seismic Load Bank -------^----- <br />method: N/A N/A Factor N/A Volume N/A 8CY <br />Area ___________ _______ ___________ <br />method: 10.00 Acres Rip Depth: 1.50 Volume 24,200 BCY or CCY <br />Source of quantity take-off: Exhibit C - Pre mining 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 />-------------- - 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: 500.00 feet <br />- Avg. velocity of machine 88.00 feet/min. <br />- Avg. machine maneuver time 0.25 minutes <br />- Hourly prod. per unit area 0.891 acres/hr <br />- Unadjusted hourly production: 2,155.04 BCY or CCY/hr <br />Correction Factors -Unadjusted production = 2,155.04 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 = 1788.69 BLY or CCY/hr <br />- Fleet production = 1788.69 BCY or CCY/hr <br />JOB COST =_______ <br />Fleet Size 1 Dozers) Total Job Time: 13.53 Mours <br />-------- ----------- <br />Unit Cost 50.083 /LCY Total Job Cost: 52,014.56 <br />