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<br />. <br />l • <br />Co <br />orado Division of Minerals an d Geology <br />ESTIMATING FORM - BULLD02ER RIPPING <br />___________________________________ <br />___________________________________ <br />Task N: 4 Prep. by: APM Task File Meme: <br />M030-4 <br />Date: 06/02/95 Permit k: N-95-030 Mine: <br />----------- ----- Green Bros. Pit No. 2 <br />--- <br />Permit Action: Mew 110 permit application --------- ------------- ---------- <br />Task Description: Ripping canpacted areas <br />HWRLY EQUIPMENT COST <br />_____________________ Besie Machine: Let D8N Horsepower: 285 <br />Blade Type: Universal ---------- <br />Attachment M1: ROPS [eb Shift Basis: 1/day <br />Attachment Y2: 1-shank ri pper ---------- <br />Cost/Hr Breakdown: Utilization X (code OSO) <br />---------------- ownership = f44.87 N/A <br />operating/overhaul - dozer = f38.19 100 <br />-ripper = 56.13 100 <br />operator = 521.58 N/A <br />Total egpt. unit cost/hr = 5110.76 Total fleet cost/h r: 5110.76 <br />MATERIAL QUANTITIES <br />__________________= Selected method Aree <br />Seismic Load Bank ------------- <br />method: N/A N/A Factor N/A Volume N/A BCY <br />Area ____~~_~ _______ _--______~ <br />nethod: 1.00 Acres Rip Depth: 3.00 Volume 4,840 BCY or CCY <br />Source of quantity take-off: Estimated from permit <br />Source of mat. load factor: N/A <br />HOURLY PRODUCTION <br />_________________ <br />_________________ <br />Seismic Method - Seismic velocity of materiel: <br />N/A <br />feet/sec. <br />-------------- - Unadjusted hourly production: N/A BCY or CCY/hr <br />Area Method - Avg. ripping depth per pass: 3.00 feet <br />----------- - Avg. ripping width per pass: 5.63 feet <br />- Avg. ripping length per pass: 300.00 feet <br />- Avg. velocity of oath ine 88.00 feet/min. <br />- Avg. machine maneuver tine 0.25 minutes <br />- Xourly prod. per unit area 0.636 acres/hr <br />- Unadjusted hourly production: 3,077.27 BCY or CCY/hr <br />Correction Factors -Unadjusted praducti on = 3,077.27 BCY or CCY/hr <br />------------------ -Site altitude = 4,250 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 = 2554.13 BCY or CCY/hr <br />- Fleet production = 2554.13 BCY or CCY/hr <br />JOB COST =_______ <br />Fleet Size 1 Dozers) Total Job Time: 1.89 Xours <br />Unit Cost 50.043 /LCY Total Job Cost: 5209.88 <br />