2016-01-26_REVISION - C1996084 ‎(2)‎

• Permit No: C1996084
• IBM Index Class Name: Revision
• Doc Date: 1/26/2016
• Doc Name: Midterm Permit Review & Cost Estimate
• From: DRMS
• To: New Elk CoalCompany, LLC
• Type & Sequence: MT4
• Email Name: RDZ
• Email Name: JRS
• Media Type: D
• Archive: No

Demo Worksheet Cont'd Task # TTT Page 66 of 111
Payload Capacity: 48.05
Truck Bed (volume) Basis:
LCY
Struck Volume: 35.00 LCY
Heaped Volume: 46.50 LCY
Average Volume: 40.75 LCY
Adjusted Volume: 46.50 LCY
Final Truck Volume Based on Number of Loader Passes: 39.38
Loading; Tool Capacity
Bucket Size Class: NA
Rated Capacity: 11.250 LCY (heaped)
Bucket Fill Factor: 0.875 Loose material - 1" and over 85 - 90% 0.875
Adjusted Capacity: 9.844 LCY
Job Condition Corrections: Site Altitude (ft.): 7100 feet
Truck Loader Source
Altitude Ad': 1.000 1.000 CAT HB
Job Efficiency: 0.830 0.830 (CAT HB
Net Correction: 0.830 0.830
Loading Tool Cycle Time: Number of Loading Tool Passes Required to Fill
Excavators and Front Shovels: Truck:
Machine Cycle Time vs. Job Condition Rating: NA
Selected Value within this Basic Rating: NA
Track Loaders — Material Description:
Cycle Time Elements (min.):
Load: NA Maneuver: NA Dump: 0.100
Wheel and Track Loaders - Unadjusted Basic Loader Cycle Time (load, dump, 0.600
maneuver):
LCY
4 passes
minutes
Cycle Time Factors
Factor (min.)
Source
Material:
Mixed material 0.02
0.020
(Cat HB)
Stockpile:
Conveyor or dozer piled 10 ft. high or less
0.01
0.010
(Cat HB)
Truck Ownership:
Common ownership of trucks and loaders -
0.04
-0.040
(Cat HB)
Operation:
Constant operation -0.04
-0.040
Cat HB
Dump Target:
I Nominal target 0.00
0.000
Cat HB
Truck Cycle Time:
Truck Exchange Time:
Truck Load Time:
Net Cycle Time Adjustment:
Adjusted Loader Cycle Time:
Net Load Time per Truck:
-0.050 Minutes
0.550 Minutes
1.750 Minutes
0.70 Minutes Adjusted for site altitude: 0.700 Minutes
1.750 Minutes Adjusted for site altitude: 1.750 Minutes
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