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Colorado Division of Minerals and Geology <br /> ----------------------------------------- <br /> ESTIMATING FORM - BULLDOZER RIPPING <br /> Task #: 43 Prep. by: ESC Task File Name: C017-43 <br /> ----------- -------- ------------- <br /> Date: 03/16/94 Permit #: C-81-017 Mine: Coal Basin Mines <br /> ----------- -------- --------------------------------- <br /> Permit Action: N/A <br /> Task Description: Rip Road D Reduction Area <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat D81. Horsepower: 335 <br /> Blade Type: Semi-Universal ---------- <br /> Attachment #1: ROPS Cab Shift Basis: 1/day <br /> Attachment #2: 1-shank ripper <br /> Cost/Hr Breakdown: Utilization % (code bW) <br /> ------- ownership = S52.07 N/A <br /> operating/overhaul - dozer = $43.64 100 <br /> -ripper = $6.13 100 <br /> operator = $21.58 N/A <br /> Total eqpt. unit cost/hr = S123.41 Total fleet cost/hr: S123.41 <br /> --------- --------- <br /> MATERIAL QUANTITIES <br /> Selected method Seizmic <br /> Seismic Load Bank ------------- <br /> method: 4,695.8 BCY Factor : N/A Volume 4,695.8 BCY <br /> Area ----------- ------- ----------- <br /> method: N/A Acres Rip Depth: N/A Volume N/A BCY or CCY <br /> ---------- ------- ----------- <br /> Source of quantity take-off: Division Estimate <br /> Source of mat. load factor: Division Estimate <br /> ------------------------------------------------- <br /> HOURLY PRODUCTION <br /> ----------------- <br /> ----------------- <br /> Seismic Method - Seismic velocity of material: 5,000 feet/sec. <br /> ---- - Unadjusted hourly production: 468.20 BCY or CCY/hr <br /> Area Method - Avg. ripping depth per pass: N/A feet <br /> ----� - Avg. ripping width per pass: N/A feet <br /> - Avg. ripping length per pass: N/A feet <br /> - Avg. velocity of machine N/A feet/min. <br /> - Avg. machine maneuver time . N/A minutes <br /> - Hourly prod. per unit area . N/A acres/hr <br /> - Unadjusted hourly production: N/A BCY or CCY/hr <br /> Correction Factors - Unadjusted production = 468.20 BCY or CCY/hr <br /> ------------- - Site altitude = 10,000 feet <br /> - Altitude adjustment = 0.95 (Cat tbl) <br /> - Job efficiency factor = 0.83 0 sh/day) <br /> - Net correction = 0.79 multiplier <br /> - Adjusted production = 369.18 BCY or CCY/hr <br /> - Fleet production = 369.18 BCY or CCY/hr <br /> JOB COST <br /> Fleet Size : 1 Dozer(s) Total Job Time: 12.72 Hours <br /> Unit Cost : $0.334 /LCY Total Job Cost: S1,569.68 <br />