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•tol orado Division of Minerals and Geology • <br />ESTIMATING FORM - BULLDOZER RIPPING <br />_____________________________o===== <br />Task N: 3 Prep. by: JD Tesk Fi Le Name: M175-3 <br />Date: 07/24/96 Permit k: M-83-175 Mine: ALamosa Pit f!2 <br />Permit Action: Final ReCl~B~fation <br />Task Description: Rip 17.6 gores <br />HOURLY EQUIPMENT COST <br />_____________________ Basic Machine: Cat D8N Horsepower: 285 <br />Blade Type: UNIVERSAL ---------- <br />Attachment M1: ROPS Cab Shift Basis: 1/day <br />Attachment M2: 3-shank ripper ---------- <br />Oost/Hr Breakdown: Utilization X (code DSIi) <br />-------------- ownership = 546.68 N/A <br />operating/overhaul - dozer = f51.93 100 <br />-ripper = 56.68 100 <br />operator = 522.95 N/A <br />Total egpt. unit cost/hr = (128.24 Total fleet cost/h r: 5128.24 <br />MATERIAL QUANTITIES <br />___________________ Selected method Area <br />Seismic Load Bank ------------- <br />method: N/A N/A Factor N/A Volume N/A BCY <br />Area ----------- ------- -___'------ <br />method: 17.60 Acres Rip Depth: 1.00 Volume 28,395 BCY or CCY <br />Source of quantity take-off: Program <br />Source of IaaT. load factor: N/A <br />HOURLY PRODUCTION <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: 7.08 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 0.822 acres/hr <br />- Unadjusted hourly production: 1,326.18 BCY or CCY/hr <br />Correction Factors -Unadjusted production = 1,326.18 BCY or CCT/hr <br />---------------~--- -Site altitude = 7,500 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 = 1100.73 BCY or CCT/hr <br />- Fleet production = 1100.73 BCY or CCT/hr <br />JOB COST =_______ <br />Fleet Size 1 Dozers) Total Job Time: 25.80 Hours <br />Unit Cost 50.117 /LCY Total Job Cost: 53,308.13 <br />