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Colorado Division of Minerals and Geology <br />"'E~TIN6`FORH•,'BULLDOZER•RIPPING4,4 <br />Task 1: 2 Prep. by: TDG Task File Name: N038-2 <br />Date: 01/13/94 Permit 1: M-87-038 Hine: Bayfield Pit No. 1 <br />Permit Action: Permit Amendment Na. AM002 - add phases 5, 6, d 7 <br />Task Description: Rip all disturbed areas prior to topsoil replacement <br />HOURLY EAUIPHEHT COST <br />-------------------= Basic Nachine: Cat D8N Horsepower: 285 <br />Blade Type: Semi-Universal """"" <br />Attachment I1: ROPS Cab Shift Basis: 1/day <br />Attachment 12: 3-shank ripper """""` <br />Cost/Nr Breakdoxn: Utilisation i (code hkm) <br />""""""""' oxnership = 544.36 N/A <br />operating/overhaul - dozer = 538.00 100 <br />-ripper = 54.54 100 <br />operator = 521.58 N/A <br />Total egpt. unit cost/hr = 5108.48 Total fleet costJhr: 5108.45 <br />MATERIAL AUANTITIES <br />----------------- Selected method : Area <br />------------------- <br />Seismic LoaO Bank """"""` <br />method: N/A NJA Factor H/A Volume : N/A BCY <br />Area ,.......... ,....,. ........... <br />method: 34.34 Acres Rip Depth: 2.5D Volume : 138,505 BCY or CCY <br />Source of quantity take-off: Permit application - sine plan map <br />Source of mat. 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: 2.56 feet <br />""""" -Avg. ripping xidth 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 eaneuver time 0.25 minutes <br />- Hourly prod. per unit area 0.822 acres/hr <br />- Unadjusted hourly production: 3,395.02 BCY or CCYihr <br />Correction Factors -Unadjusted production = 3,395.02 BCY or CCY/hr <br />""""""""" -Site altitude = 6,750 feet <br />- Altitude adjustment = 1.00 (Cat tbl) <br />- Job efficiency factor = 0.83 (Ish/day) <br />- Net correction = 0.83 multiplier <br />- Adjusted production = 2817.87 BCY or CCYJhr <br />- Fleet production = 2811.87 BCY or CCY/hr <br />JOB COST ---_==__ <br />Fleet Size : 1 Dozers) Total Jab Time: 49.15 Hours <br />Unit Cost 50.038 /LCY Total Job Cost: 55,332.01 <br />