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Scraper Worksheet Cont'd Task # 006 Page 2 of 2 <br />Cycle Time: <br />Scraper Loading Time: 0.80 Minutes <br />Maneuver and Spread Time: 0.60 Minutes <br />Job Condition Correction: Site Altitude: 7500 feet <br />Scraper Push Dozer <br />Source <br />Grade <br />%) <br />Altitude Adj: 1.000 NA <br />(CAT HB) <br />Job Efficiency: 0.830 NA <br />(CAT HB) <br />Net Correction: 0.830 NA <br />Travel Time. <br />Road Condition: Very hard, smooth, asphalt or concrete, no tire penetration 1.2 <br />Haul Route: <br />Seg # <br />Haul Distance (Ft) <br />Grade <br />%) <br />Roll. Res <br />(%) <br />Total Res <br />(%) <br />Velocity (fpm) <br />Travel Time <br />(min) <br />1 <br />2000.00 <br />2.75 <br />1.20 <br />3.95 <br />2394 <br />1.05 <br />Haul Time: 1.05 minutes <br />Return Route: <br />Seg # <br />Haul Distance (Ft) <br />Grade <br />(%) <br />Roll. Res <br />(%) <br />Total Res <br />(%) <br />Velocity (fpm) <br />Travel Time <br />(min) <br />1 <br />2000.00 <br />-2.75 <br />1.20 <br />-1.55 <br />2972 <br />0.72 <br />Return Time: <br />0.72 <br />minutes <br />Total Scraper team cycle time: <br />3.17 <br />minutes <br />Adjusted for job conditions: <br />455.58 <br />LCY/Hour <br />Selected Number of Scrapers: <br />2 <br />Scraper(s) <br />Adjusted single scraper team (unit) hourly production: <br />911.17 <br />LCY/Hour <br />Adjusted multiple scraper team (fleet) hourly production: <br />3,644.67 <br />LCY/Hour <br />Unadjusted unit production/hour: 548.90 LCY/Hour <br />Optimal Number of Scrapers per push dozer: <br />JOB TIME AND COST <br />Fleet size: 4 Team(s) Total job time: <br />99.64 <br />Hours <br />Unit cost: $0.761 /LCY Total job cost: $276,389 <br />CIRCES Cost Estimating Software <br />