2015-01-26_PERMIT FILE - C1981012A ‎(7)‎

• Permit No: C1981012A
• IBM Index Class Name: Permit File
• Doc Date: 1/26/2015
• Doc Name: Bond Calculations ‎(RN5, TR50 & TR51)‎
• Section_Exhibit Name: Exhibit 28 Appendix B
• Media Type: D
• Archive: Yes

COMPACTION WORK
Task description: Compact Final RDA Surface
Site: New Elk Mine Permit Action: Permit Renewal 06 Permit/Job #: C1981012
PROJECT IDENTIFICATION
Task #: 615 State: Colorado
Date: 5/12/2014 County: Las Animas
User: JRS
Abbreviation: None
Filename: C012 -615
Agency or organization name: DRMS
Unadjusted hourly production = (W x S x L x Q/ P
Compacted width per pass (W):
HOURLY EQUIPMENT COST
Average Compactor Speed (S):
4.00 mph
Basic Machine: CAT 815F
8.00 inches
Horsepower: 240
Compactor Type: Soil - tamping foot
Required number of machine passes (P):
Shift Basis: 1 per day
Unadjusted Hourly Unit Production:
847.60 CCY/hour
Data Source: (CRG)
Cost Breakdown:
Source
Altitude Adj: 1.00
CAT HB
Utilization %
Ownership Cost/Hour:
$36.81
NA
Operating Cost/Hour:
$82.25
100
Operator Cost/Hour:
$28.75
NA
Total Unit Cost/Hour:
$147.81
Total Fleet Cost/Hour:
$147.81
Unit cost: $0.210 per CCY
MATERIAL OUANTITIES
Loose volume: 26,250 LCY
Compacted volume: 22,838 CCY
Source of estimated volume: 8.13 acre RDA surface X 2 ft. lift
Source of estimated shrinkage factor: Cat Handbook
Shrinkage factor: 0.870
HOURLY PRODUCTION
Unadjusted hourly production = (W x S x L x Q/ P
Compacted width per pass (W):
6.50 feet
Average Compactor Speed (S):
4.00 mph
Compacted thickness of each lift (L):
8.00 inches
Conversion Constant (C):
16.3 (5,280ft. /12in. /27cu.ft.)
Required number of machine passes (P):
4 passes
Unadjusted Hourly Unit Production:
847.60 CCY/hour
Job Condition Correction Factors
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:
703.51 CCY /Hour
Adjusted Hourly Fleet Production:
703.51 CCY/Hour
JOB TIME AND COST
Fleet size: 1 Compactor(s)
Total job time: 32.46 Hours
Unit cost: $0.210 per CCY
Total job cost: $4,798.00
CIRCES Cost Estimating Software