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Colorado Division of Minerals and Geology <br /> ----------------------------------------- <br /> ESTIMATING FORM - HYDRAULIC EXCAVATOR WORK <br /> Task #: 47 Prep. by: SGR Task File Name: C017-47 <br /> ------------ --------- ------------- <br /> Date: 11/25/97 Permit #:C-81-017 Mine: Coal Basin <br /> ------------ --------- --------------------------------- <br /> Permit Action: litigation estimate <br /> ------------------------------------------------------------- <br /> Task Description: reduce road a to 22 feet <br /> ------------------------------------------------------------- <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: CAT 312 Shift Basis:1/day <br /> Cost Breakdown: ------------------- ---------- <br /> -------------- Utilization % Horsepower : 84 <br /> Ownership cost/hr = $13.10 N/A ---------- <br /> Operating & overhaul cost/hr= $13.21 100 Weight-tons: <br /> Operator cost/hr = $23.13 N/A ---------- <br /> -------- (DQI OSU) <br /> Total eqpt. unit cost/hr = $49.44 Total fleet cost/hr: $49.44 <br /> -------- --------_-- <br /> MATERIAL QUANTITIES <br /> Initial Swell Loose <br /> Volume: 25,636.0 BCY Factor: 1.25 Volume: 32,045.0 cu. yds. <br /> ------------ ---------- ------------- <br /> Source of quantity take-off: division estimate <br /> ---------------------------------------------------- <br /> Source of est. swell factor: program <br /> ---------------------------------------------------- <br /> HOURLY PRODUCTION <br /> Cycle Time - Basic cycle time vs. job condition rating: BELOW AVG. <br /> ---------- - Time value within basic rating: MINIMUM <br /> Basic cycle time = 0.31 min. <br /> Bucket Capacity ------------- <br /> --------------- <br /> Rated capacity: 0.59 LCY (heaped) Size class: medium <br /> Bucket fill factor: 1.10 Other - rock/dirt mixtures (100-120%) <br /> ....... ---------------------------------------------------- <br /> Adjusted capacity: 0.65 LCY <br /> Job Condition Correction Factors Altitude adj. = 0.85 (CHB) <br /> ________________________________ Job efficiency = 0.83 (1s/d YUA) <br /> Site altitude = 8,200 ft. ........... <br /> ------- Net correction 0.71 <br /> Unadjusted hourly unit production 124.41 LCY/Hr <br /> Adjusted hourly unit production 87.77 LCY/Hr <br /> Adjusted hourly fleet production 87.77 LCY/Hr <br /> JOB COST <br /> Fleet Size: 1 Excavator(s) Total Job Time: 365.10 Hours <br /> ------- ___-------- <br /> Unit Cost : $0.563 /cu. yd. Total Job Cost: $18,049.60 <br /> ------- ----------- <br />