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Scraper Worksheet Cont'd Task # 003 <br />Cycle Time: <br />Scraper Loading Time: 1.00 Minutes <br />Maneuver and Spread Time: 0.60 Minutes <br />Job Condition Correction: <br />Scraper Push Dozer Source <br />Altitude Ad': 1.000 NA CAT HB <br />Job Efficiency: 0.830 NA (CAT HB) <br />Page 2 of 2 <br />Site Altitude: 7500 feet <br />Net Correction: 0.830 NA <br />Travel Time: <br />Road Condition: Rutted dirt, little maintenance, no water, 1" tire penetration 4.0 <br />Haul Route: <br />Seg # <br />Haul Distance (Ft) <br />Grade <br />Roll. Res <br />Total Res <br />Velocity (fpm) <br />Travel Time <br />(min) <br />1 <br />4462.00 <br />2.75 <br />4.00 <br />6.75 <br />1362 <br />3.35 <br />Haul Time: 3.35 minutes <br />Return Route: <br />Seg # <br />Haul Distance (Ft) <br />Grade —P <br />R a L Res T <br />Total Res <br />Velocity (fpm) <br />Travel Time <br />(min) <br />1 <br />4462.00 <br />-2.75 <br />4.00 <br />L 1.25 <br />2963 <br />1.63 <br />Return Time: <br />1.63 <br />minutes <br />Total Scraper team cycle time: <br />6.58 <br />minutes <br />Adjusted for job conditions: <br />438.97 <br />LCY/Hour <br />Selected Number of Scrapers: <br />4 <br />Scraper(s) <br />Adjusted single scraper team (unit) hourly production: <br />877.93 <br />LCY/Hour <br />Adjusted multiple scraper team (fleet) hourly production: <br />2,633.80 <br />LCY/Hour <br />Unadjusted unit production/hour: 528.88 LCY/Hour <br />Optimal Number of Scrapers per push dozer: <br />JOB TIME AND COST <br />Fleet size: 3 <br />Team(s) <br />Unit cost: $1.822 /LCY <br />Total job time: 509.68 Hours <br />Total job cost: $2,446,377 <br />CIRCES Cost Estimating Software <br />