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Scraper Worksheet Cont'd Task # 025 Page 2 of 2 <br />Cycle Time: <br />Scraper Loading Time: <br />Maneuver and Spread Time: <br />Job Condition Correction: <br />1.00 Minutes <br />0.60 Minutes <br />Site Altitude: 6200 feet <br /> Scraper Push Dozer Source <br />Altitude Ad': 1.000 NA (CAT HB) <br />Job Efficiency: 0.830 NA (CAT HB) <br />Net Correction: 0.830 NA <br />Travel Time: <br />Road Condition: Rutted dirt little maintenance, no water, 2" tire penetration 5.0 <br />Haul Route- <br />Seg # Haul Distance (Ft) Grade <br />%) Roll. Res <br />(%) Total Res <br />(%) Velocity (fpm) Travel Time <br />(min) <br />1 1050.00 -3.00 5.00 2.00 2939 0.57 <br />2 1950.00 13.00 5.00 18.00 508 3.40 <br />3 200.00 0.00 5.00 5.00 1867 0.20 <br />Haul Time: 4.17 minutes <br />Return Route: <br />Seg # Haul Distance (Ft) Grade <br />%) Roll. Res <br />(%) Total Res <br />(%) velocity (fpm) Travel Time <br />(min) <br />1 200.00 0.00 5.00 5.00 2795 0.26 <br />2 1950.00 -13.00 5.00 -8.00 2972 0.71 <br />3 1050.00 3.00 5.00 8.00 1931 0.39 <br />Return Time: 1.36 minutes <br />Total Scraper team cycle time: 7.13 minutes <br />Adjusted for job conditions: 405.11 LCY/Hour <br />Selected Number of Scrapers: 2 Scraper(s) <br />Adjusted single scraper team (unit) hourly production: 405.11 LCY/Hour <br />Adjusted multiple scraper team (fleet) hourly production: 405.11 LCY/Hour <br />Unadjusted unit production/hour: 488.08 LCY/Hour <br />Optimal Number of Scrapers per push dozer: <br />JOB TIME AND COST <br />Fleet size: 1 Team(s) Total job time: 4.63 Hours <br />Unit cost: $1.517 /LCY Total job cost: $2,844.63 <br />CIRCES Cost Estimating Software