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<br />Colorado Division of Mircrals and Geology <br />ESTIMATING FORK - BULLD02ER RIPPING <br />v=•seoes== aw=e=ce=ssvzz~ee• <br />Task f: 3 Prep. by: JD Task Flle Yse: M247-3 <br />Date: 72/02/96 Pen.lt f: M-77-247 Mine: Cosldele quarry <br />Penft Aetian: Fircl Reclmtian <br />Task Description: Rip Permit Area <br />NQIRLT EOUIPMEMT COST <br />•_--___=====s.:===_= Baeie Machi rc: Cat D8M Rorsepower: 285 <br />Blade Type: UNIVERSAL <br />Attechwent ii: ROPS Cab Shift Basis: 7/day <br />Attechwent i-2: 3-shank ri pper <br />Cost/Xr Breakdown: Utlllzatfon >< (code OSIi) <br />owrcrahip • f46.68 Y/A <br />aperating/overhsul - dozer • 557.93 700 <br />-ripper • 56.68 700 <br />operator = 522.95 N/A <br />Total cgpt. unit cost/hr = (128.24 Total fleet cost/hr: 5128.24 <br />M1ITERIAL gUANTITIES <br />___=_ =___--'____= Selected wethod Area <br />Sei saie Load Bank <br />wethod: N/A M/A Fxtor Y/A Voluwe Y/A 8CY <br />Area <br />wethad: 24.00 Acres Rip Depth: 7.00 Volume 38,720 BLY or CCT <br />Source of quantity [ske-off: Prograw <br />Source of wat. load factor: M/A <br />XOURLY PRODUCTION <br />• _ <br />Seismic Method - Seiswie velocity of weteriel: N/A feet/sec. <br />- Uradjusted hourly production: M/A BCY or CLY/hr <br />Area Method - Avg. ripping depth per pass: 1.00 feet <br />- Avg. ripping width per pass: 7.08 feet <br />- Avg. ripping length per pass: 500.00 feet <br />- Avg. velocity of swchirc 88.00 feet/win. <br />- Avg. warhirc wsneuver ti we 0.25 wirutes <br />- Xourly prod, per unit area 0.822 acres/hr <br />- lkredj usted hourly production: 7,326.18 BCY or CLY/hr <br />Correction Factors -Unadjusted production = 7,326.78 BCY or CCY/hr <br />- Site sltitude = 7,200 feet <br />- Attitude edjustoient = 1.00 (Cat tbl) <br />- Job effic iercy factor = 0.83 (tsh/day) <br />- Met torrectian = 0.83 nultiplier <br />• -Adjusted production = 1100.73 BCY or CCY/hr <br />- Fleet production = 1100.73 BCY or CCT/hr <br />JOB COST =_______ <br />Fleet Size 1 Dozers) Total Job Time: 35.18 Xours <br />Unit Cost 50.117 /LCY Total Job Lost: ~f4,511.09 <br />