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i <br />• <br />Colorado Division of Minerals and Geology <br />- ESTIMATING FORM ~ BULLDOZER RIPPING <br />Task #: 2 Prep. by: SSS Task File Name: M020~2 <br />--------- -------- ----- <br />Date: 06/03/96 Permit #: M~76-020 Mine: Thomas Pit <br />Permit Action: Routine Reclamation Cost Estimate Update - <br />Task Description: Rip the Facilities and Stockpile Areas <br />HOURLY EQUIPMENT COST <br />- Basic Machine <br />Blade type <br />Attachment #1 <br />Attachment #2 <br />Cost/Hr Breakdown: <br />----------------- ownership <br />operating/overhaul ~ dozer <br />ripper <br />operator <br />Total egpt. unit cost/hr <br />MATERIAL QUANTITIES <br />Cat DBN Horsepower: 2B5 <br />SEMI~UNIVER~AL ------ <br />ROPS Cab Shift Basis: 1/day <br />3~shank ripper ------- <br />Utilization X (code OSU <br />546.40 N/A <br />551.67 100 <br />56.68 100 <br />522.95 N/A <br />5127 70 Total fleet cost/hr: 5127.70 <br />Selected method Area <br />Seismic Load Bank ------------- <br />method: N/A H/A Factor N/A Volume N/A BCY <br />Area _______-___ _______ _-_________ <br />method: 14.40 Acres Rip Depth: 1.00 Volume 23.232 BCY or CCY <br />Source of quantity take-off: Rip 14.4 acre area to a depth of 12" <br />Source of mat. load factor: N/A <br />HOURLY PRODUCTION <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: D. 50 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: 663.09 BCY or CCY/hr <br />Correction Factors -Unadjusted production = 663.09 BCY or CCY/hr <br />------------------ ~ Site altitude = 6.675 feet <br />- Altitude adjustment = 1.00 (Cat tbl) <br />Job efficiency factor = 0.83 (lsh/day) <br />Net correction = 0.83 multiplier <br />Adjusted production = 550.37 BCY or CCY/hr <br />- Fleet production = 550.37 BLY or CCY/hr <br />JOB COST - <br />fleet Size 1 Dozers) Total Job Time: 42.21 Hours <br />------- ---------- <br />Unit Cost : 50.232 /CCY Total Job Cost: 55.390.67 <br />