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~COlorado Division of Minerals and Geology <br />ESTIMATING FORM - BULLD02ER RIPPING <br />___________________________________ <br />___________________________________ <br />Task #: 3 Prep. by: JD Tesk File Name: M201-3 <br />Date: N 12/21/95 Permit N: M-80-201 Mine: O'Barcan Pit <br />Permit Action: Final Reclamation <br />Task Description: Rip Compacted Areas <br />HOURLY EDUI PMENT COST <br />_____________________ Basic Machine: Cat D7G Horsepower: 200 <br />Blade Type: STRAIGHT --------- <br />Attachment R1: ROPS Cab Shift Basis: 1/day <br />Attachment N2: 3-shank ripper ---------- <br />Cost/Hr Breakdown: Utilization % (code bSli) <br />---------------- ownership = f34.16 N/A <br />operating/overhaul - dozer = f34.10 100 <br />-ripper = f4.64 100 <br />operator = f22.95 N/A <br />Total egpt. unit cost/hr = f95.84 Total fleet cost/h r: f95.84 <br />MATERIAL QUANTITIES <br />___________________ Selected method Area <br />Seismic Load Bank ------------- <br />method: N/A N/A Factor : N/A Vol une N/A BLY <br />Aree -----°°-- ------- -'--------- <br />method: 6.00 Acres Rip Depth: 1.00 Yolunie 9,680 BCY or CCY <br />___________ _______ --_______-_ <br />Source of quantity takeoff: Calculation <br />Source of mat. load factor: N/A <br />HOURLY PRODUCTION <br />_________________ <br />Seismic Method - Seismic velocity of materiel: N/A feet/sec. <br />-------------- - Unadjusted hourly production: N/A BLY or CCY/hr <br />Area Method - Avg. ripping depth per pass: 1.00 feet <br />----------- - Avg. rippirxJ width per pass: 6.50 feet <br />- Avg. ripping length per pass: 300.00 feet <br />- Avg. velocity of machine 88.00 feet/min. <br />- Avg. machine maneuver time 0.25 minutes <br />- Hourly prod. per unit area 0.734 acres/hr <br />- Unadjusted hourly production: 1,184.27 BCY or CCY/hr <br />Correction Factors -Unadjusted production = 1,184.27 BCY or CCY/hr <br />------------------ -Site altitude = 8,000 feet <br />- Altitude adjustment = 0.94 (Cat tbl) <br />- Job efficiency factor = 0.83 (1sh/day) <br />- Net correction = 0.78 nulti plier <br />- Adjusted production = 923.96 BCY or CCY/hr <br />- Fleet production = 923.96 8CT or CCY/hr <br />JOB COST =_______ <br />Fleet Size 1 Dozers) Total Job Time: 10.48 Hours <br />Unit Cost 50.104 /CCY Total Job Cost: f1,004.08 <br />