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rado Division of Minerals and Geology <br />ESTIMATING FORM -.BULLDOZER RIPPING <br />___________________________________ <br />________ __________________ <br />Task #: 8 Prep. by: RCO Task File Name: M311-8 <br />-_----_____ --______ _____________ <br />Date: 11/03/98 Permit #: M-77-311 Mine: Sr-13A Mine ~~- <br />Permit Action: Final Reclamation <br />_____________________________________________________________ <br />Task Description: Rip compacted areas (portal area and vent areas) <br />HOURLY EQUIPMENT COST <br />_____________________ Basic Machine: Cat D7H SERIES II Horsepower: 215 <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 oSll) <br />----------------- ounersh ip = 536.36 N/A <br />operating/overhaul - dozer = 540.57 100 <br />-ripper = 54.57 100 <br />operator = 523.12 N/A <br />Total egpt. unit cost/hr = 5104.62 Total fleet cost/h r: 5104.62 <br />_________ _________ <br />MATERIAL DUANTITIES <br />___________________ Selected method Area <br />Seismic Load Bank ------------- <br />method: N/A N/A Factor N/A Volume N/A BCY <br />Area ____-_--___ r____- ___________ <br />method: 2.50 Acres Rip Depth: 2.00 Volume 8,067 BCY or CCY <br />Source of quantity take-off: Permit map, reclamation plan <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. ri ppi n9 depth per pass: 2.00 feet <br />----------- - Avg. ripping width per pass: 6.50 feet <br />- Avg. ripping length per pass: 200.00 feet <br />- Avg. velocity of machine 88.00 feet/min. <br />- Avg. machine maneuver time 0.25 minutes <br />- Hourly prod. per unit area 0.710 acres/hr <br />- Unadjusted hourly production: 2,290.29 BCY or CCY/hr <br />Correction Factors -Unadjusted production = 2,290.29 BCY or CCY/hr <br />------------------ -Site altitude = 5,500 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 = 1900.94 BCY or CCY/hr <br />- Fleet production = 1900.94 BCY or CCY/hr <br />JOB COST =_______ <br />Fleet Size 1 Dozers) Total Job Time: 4.24 Hours <br />________ ___________ <br />Unit Cost 50.055 /ICY Total Job Cost: 8443.94 <br />