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•oloredo Division of Minerals and Geology • <br />ESTIMATING FORM - BULLD02ER RIPPING <br />___________________________________ <br />___________________________________ <br />Task #: 4 Prep. by: BLP Tesk File Name: %219-4 <br />Date: 07/22/96 Permit #: %-96-219 Mine: Cottonwood Land <br />Permit Action: not <br />Task Description: rip drillpads 8 access roads <br />HOURLY EOUI PMENT COBT <br />___________________ _ Basic Machine: Cat D7H SERIES II Horsepower: 215 <br />Blade Type: UNIVERSAL ---------- <br />Attachment #1: RODS Cab Shift Besi s: 1/day <br />Attachment #2: 3-shank ripper ---------- <br />Cost/Xr Breakdown: Utilization X (code dtU) <br />_____-_~~_~___ ownership = f38.70 N/A <br />operating/overhaul - dozer = f37.95 100 <br />-ripper = f4.64 700 <br />operator = 522.95 N/A <br />Total egpt. unit cost/hr = 5104.23 Total fleet cost/h r: (104.23 <br />--------- --------- <br />MATERIAL QUANTITIES <br />___________________ Selected method Area <br />Seismic Load Bank ------------- <br />method: N/p N/A Factor N/A Volume N/A BCY <br />Area ____-______ _______ ___________ <br />method: 27.31 Acres Rip Depth: 1.00 Volume 44,060 BCY or LCY <br />Source of quantity take-off: not <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: 1.00 feet <br />----------- - Avg. ripping width per pass: 6.50 feet <br />- Avg. ripping length per pass: 100.00 feet <br />- Avg. velocity of machine 88.00 feet/min. <br />- Avg, machine maneuver tine 0.25 minutes <br />- Hourly prod. per unit area 0.646 acres/hr <br />- Unadjusted hourly production: 1,041.89 BCY or CCY/hr <br />Correction Factors -Unadjusted production = 1,041.89 BCY or CCY/hr <br />----------------- -Site altitude = 7,200 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 = 864.77 BCY or CCY/hr <br />- Fleet production = 864.77 BCY or CCY/hr <br />JOB COST =_______ <br />Fleet Size 1 Dozers) Total Job Time: 50.95 Hours <br />________ ___________ <br />Unit Cost (0.121 /LCY Total Job Cost: (5,310.46 <br />