2012-10-29_REVISION - C1981012 (3)

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Scraper Worksheet Cont'd Task # 009 Page 19 of 161 Task description: Site: New Elk Mine COMPACTION WORK Compact Coal Stockpile Footprints at Development Waste Pile Permit Action: 2011 Midterm Review Permit/Job #: C1981012 PROJECT IDENTIFICATION Task #: 010 State: Colorado Date: 7/14/2011 County: Las Animas User: JDM Abbreviation: None Filename: CO 12-020 Agency or organization name: DRMS feet 4.00 mph 8.00 HOURLY EQUIPMENT COST 16.3 (5,280ft. /12in. /27cu.ft.) Basic Machine: CAT 815F passes Horsepower: 240 Compactor Type: Soil - tamping foot Site Altitude: Shift Basis: 1 per day Data Source: (CRG) Cost Breakdown: Utilization % Ownership Cost/Hour: $40.03 NA Operating Cost/Hour: $63.29 100 Operator Cost/Hour: $23.56 NA Total Unit Cost/Hour: $126.88 Total Fleet Cost/Hour: $126.88 MATERIAL QUANTITIES Loose volume: 35,350 LCY Shrinkage factor: 0.870 Compacted volume: 30,755 CCY Source of estimated volume: Division of Reclamation, Mining & Safety Source of estimated shrinkage factor: Cat Handbook HOURLY PRODUCTION Compacted width per pass (W): Average Compactor Speed (S): Compacted thickness of each lift (L): Conversion Constant (C): Required number of machine passes (P): Unadjusted Hourly Unit Production: Job Condition Correction Factors Unadjusted hourly production = (W x S x L x C) / P 6.42 feet 4.00 mph 8.00 inches 16.3 (5,280ft. /12in. /27cu.ft.) 4 passes 837.17 CCY /hour Site Altitude: 7,500 feet Source Altitude Adj: 1.00 (CAT HB) Job Efficiency: 0.83 (1 shift/day) Net Correction: 0.8300 multiplier Adjusted Hourly Unit Production: Adjusted Hourly Fleet Production: JOB TIME AND COST Fleet size: 1 Compactor(s) Unit cost: $0.183 per CCY 694.85 CCY/Hour 694.85 CCY/Hour Total job time: 44.26 Hours Total job cost: $5,616.00 CIRCES Cost Estimating Software