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•Colorado Division of Minerals and Geology• <br /> ----------------------------------------- <br /> ESTIMATING FORM - BULLDOZER RIPPING <br /> Task #: 3 Prep. by: JD Task File Name: M085.3 <br /> ----------- -------- ------------- <br /> Date: 12/22/95 Permit #: M-85-085 Mine: Rancho Rosado Pit <br /> ---------- -------- -------------------------------- <br /> Permit Action: Final Reclamation <br /> ------------------------------------------------------------- <br /> Task Description: Rip 10 acre tract <br /> ------------------------------------------------------------- <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat DBN Horsepower: 285 <br /> Blade Type: UNIVERSAL ---------- <br /> Attachment #1: ROPS Cab Shift Basis: 1/day <br /> Attachment #2: 3-shank ripper ---------- <br /> Cost/Hr Breakdown: Utilization % (code 690) <br /> ----------------- ownership = $46.68 N/A <br /> operating/overhaul - dozer = $51.93 100 <br /> -ripper = $6.68 100 <br /> operator = $22.95 N/A <br /> Total eqpt. unit cost/hr = $128.24 Total fleet cost/hr: $128.24 <br /> --------- --------- <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: 10.00 Acres Rip Depth: 1.00 Volume 16,133 BCY or CCY <br /> ----------- ------- ----------- <br /> Source of quantity takeoff: Calculation <br /> ---------------------------------------------------- <br /> Source of mat. load factor: N/A <br /> ---------------------------------------------------- <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: 1.00 feet <br /> ----------- - Avg. ripping width per pass: 7.08 feet <br /> - Avg, ripping length per pass: 300.00 feet <br /> - Avg. velocity of machine 88.00 feet/min. <br /> - Avg. machine maneuver time : 0.25 minutes <br /> - Hourly prod. per unit area . 0.800 acres/hr <br /> - Unadjusted hourly production: 1,289.94 BCY or CCY/hr <br /> Correction Factors - Unadjusted production = 1,289.94 BCY or CCY/hr <br /> ------------------ - Site altitude = 7,800 feet <br /> - Altitude adjustment = 1.00 (Cat tbl) <br /> - Job efficiency factor = 0.83 0 sh/day) <br /> - Net correction = 0.83 multiplier <br /> - Adjusted production = 1070.65 BCY or CCY/hr <br /> - Fleet production = 1070.65 BCY or CCY/hr <br /> JOB COST <br /> Fleet Size : 1 Dozer(s) Total Job Time: 15.07 Hours <br /> Unit Cost : $0.120 /LCY Total Job Cost: $1,932.43 <br /> -------- ----------- <br />