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CIRCES Cost Estimating Software <br />COMPACTION WORK <br />Agency or organization name : Colorado Division Of Reclamation, Mining And Safety <br />Permit or other job action : Permit Renewal RN-05 <br />Task description : Compact shaft backfill material <br />....................................................................... <br />HOURLY EQUIPMENT COST <br />Machine description : CAT 825G Series 11(2005) Horsepower : 339 <br />Compactor type : Soil - tamping foot Shift basis : 1 per day <br />Source of estimated volume: Exhibit 69, Table 2 <br />Source of estimated shrinkage factor : CAT Handbook <br />.......................................................................................................................... <br />HOURLY PRODUCTION <br />Unadiusted hourlv 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 />Job Condition Correction Factors <br />Site altitude : 7,000 feet <br />8.67 feet <br />4.00 mph <br />12.00 inches <br />16.3 (5,280 ft./12 in./27 cu.ft.) <br />5 passes <br />1,356.68 CCY/hr <br />Source <br />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 : 1,126.05 CCY/hr