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Bowie No. 2 Mine C1996083 <br />Cycle Time: <br />Scraper Loading Time: <br />Maneuver and Spread Time: <br />Job Condition Correction: <br />TR -83 Page 3 of 4 <br />0.90 Minutes <br />0.60 Minutes <br />Site Altitude: 6750 feet <br />Net Correction: 0.830 NA <br />Travel Time: <br />Road Condition: Firm, smooth, rolling, dirt/lt. surfaced, watered, maintained 3.0 <br />Haul Route: <br />Seg # <br />Scraper <br />Push Dozer <br />Source <br />Altitude Adj: <br />1.000 <br />NA <br />(CAT HB) <br />Job Efficiency: <br />0.830 <br />NA <br />(CAT HB) <br />Net Correction: 0.830 NA <br />Travel Time: <br />Road Condition: Firm, smooth, rolling, dirt/lt. surfaced, watered, maintained 3.0 <br />Haul Route: <br />Seg # <br />Haul Distance (Ft) <br />Grade <br />Roll. Res ( %) <br />Total Res ( %) <br />Velocity (fpm) <br />Travel Time (min) <br />1 <br />800.00 <br />0.00 <br />3.00 <br />3.00 <br />2824 <br />0.52 <br />Haul Time: 0.52 minutes <br />Return Route: <br />Seg # <br />Haul Distance (Ft) <br />Grade <br />( %) <br />Roll. Res ( %) <br />Total Res ( %) <br />Velocity (fpm) <br />Travel Time <br />(min) <br />1 <br />800.00 <br />0.00 <br />3.00 <br />3.00 <br />2874 <br />0.40 <br />Return Time: <br />Total Scraper team cycle time <br />Adjusted for job conditions <br />Selected Number of Scrapers <br />Adjusted single scraper team (unit) hourly production <br />Adjusted multiple scraper team (fleet) hourly production <br />Unadjusted unit production/hour: 902.82 LCY/Hour <br />Optimal Number of Scrapers per push dozer: <br />JOB TIME AND COST <br />Fleet size: 1 Team(s) Total job time: <br />Unit cost: $0.743 /LCY Total job cost: <br />0.40 <br />minutes <br />2.42 <br />749.34 <br />2 <br />749.34 <br />749.34 <br />60.63 <br />$33,764.22 <br />minutes <br />LCY/Hour <br />Scraper(s) <br />LCY/Hour <br />LCY/Hour <br />Hours <br />CIRCES Cost Estimating Software <br />