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Scraper Worksheet Cont'd <br />Cycle Time: <br />Scraper Loading Time: <br />Maneuver and Spread Time: <br />Job Condition Correction: <br />Task # 011 <br />0.90 Minutes <br />0.70 Minutes <br />Page 2 of 2 <br />Site Altitude: 5800 feet <br /> Scraper Push Dozer Source <br />Altitude Adj: 1.000 NA (CAT HB) <br />Job Efficienc : 0.830 NA (CAT HB) <br />Net Correction: I 0.830 I NA <br />Travel Time: <br />Road Condition: Rutted dirt, little maintenance, no water, 1" tire penetration 4.0 <br />Haul Route: <br />Seg # Haul Distance (Ft) Grade <br />(%) Roll. Res <br />%) Total Res <br />(%) Velocity (fpm) Travel Time <br />(min) <br />1 500.00 2.00 4.00 6.00 1204 0.49 <br />Haul Time: 0.49 minutes <br />Return Route: <br />Seg # Haul Distance (Ft) Grade Roll. Res Total Res <br />%) Velocity (fpm) Travel Time <br />(fin) <br />1 500.00 -2.00 4.00 2.00 2898 0.34 <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: 464.78 LCY/Hour <br />Optimal Number of Scrapers per push dozer: <br />JOB TIME AND COST <br />Fleet size: 1 <br />Unit cost: $0.422 <br />0.34 minutes <br />2.43 minutes <br />385.77 LCY/Hour <br />1 Scraper(s) <br />385.77 LCY/Hour <br />385.77 LCY/Hour <br />Team(s) Total job time: 15.29 Hours <br />/LCY Total job cost: $2,490.90 <br />C[RCES Cost Estimating Software