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CIRCES Cost Estimating Software <br />COMPACTION WORK <br />::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::.::.:::::.:::::::::::::::.::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: <br />::::::..::.......:..:.................................... <br />PROJECT IDENTIFICATION <br />Task # : 122 State :Colorado Permit/job # : C-1981-022 <br />Date : O6-May-2008 <br />User : JRS <br />County :Delta <br />Site :Elk Creek Mine <br />Abbreviation :none <br />Filename : C022-122 <br />Agency or organization name :Colorado Division Of Reclamation, Mining And Safety <br />Permit or other job action :Permit Renewal 05 <br />Task description :Compact Refuse at 11-West Refuse Pile <br />HOURLY EQUIPMENT COST <br />Machine description :CAT 815E Horsepower : 240 <br />Compactor type :Soil -tamping foot Shift basis : 1 per day <br />Source of estimated volume :Operator Estimate <br />Source of estimated shrinkage factor :CAT Handbook <br />HOURLY PRODUCTION <br />Unadiusted hourly production = (W x S x L x C) / P <br />Compacted width per pass (W) <br />Average compactor speed (S) <br />Compacted thickness of each lift (L) <br />Conversion constant (C) <br />Required number of machine passes (P) <br />Unadjusted hourly unit production <br />6.42 feet <br />4.00 mph <br />12.00 inches <br />16.3 (5,280 ft./12 in./27 cu.ft.) <br />4 passes <br />1,255.75 CCY/hr <br />Job Condition Correction Factors Source <br />Site altitude : 6,200 feet Altitude adjustment factor : 1.00 (Cat HB) <br />Job efficiency factor : 0.83 (1 shift/day) <br />Net job correction : 0.83 multiplier <br />Adjusted hourly unit production <br />1,042.27 CCY/hr <br />