2012-10-29_REVISION - C1981012 ‎(3)‎

• Permit No: C1981012
• IBM Index Class Name: REVISION
• Doc Date: 10/29/2012
• Doc Name: Cost Estimate ‎(Part 1 of 2)‎
• From: DRMS
• To: Ron Thompson - New Elk Coal Company, LLC
• Type & Sequence: MT6
• Email Name: JHB
• Email Name: DIH
• Media Type: D
• Archive: No

Scraper Worksheet Cont'd
Task # 006 Page 9 of 161
Struck Volume:
10.00
LCY
Heaped Volume:
12.00
LCY
Average Volume:
11.00
LCY
Adjusted Volume:
12.00
LCY
Final Truck
Volume Based on Number of Loader Passes: 9.24 LCY
Loading Tool Capacity
-0.040
(Cat HB)
Dump Target:
Nominal target 0.00
Bucket Size Class: NA
Rated Capacity:
4.200
LCY (heaped)
Bucket Fill Factor:
1.100
Other - rock/dirt mixtures (100 -120 %) 1.100
Adjusted Capacity:
4.620
LCY
Job Condition Corrections:
Site Altitude (ft.): 7500 feet
Net Correction: 0.830 0.830
Loading Tool Cycle Time: Number of Loading Tool Passes Required to Fill Truck:
Excavators and Front Shovels:
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, maneuver): 0.550 minutes
2 passes
Cycle Time Factors
Factor (min.)
Source
Material:
Material 3/4" to 6" diameter 0.00
Truck
Loader
Source
Altitude Adj:
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 Truck:
Excavators and Front Shovels:
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, maneuver): 0.550 minutes
2 passes
Cycle Time Factors
Factor (min.)
Source
Material:
Material 3/4" to 6" diameter 0.00
0.000
(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 op eration -0.04
-0.040
(Cat HB)
Dump Target:
Nominal target 0.00
0.000
(Cat HB)
Net Cycle Time Adjustment: -0.070 minutes
Adjusted Loader Cycle Time: 0.480 minutes
Net Load Time per Truck: 0.580 minutes
Truck Cycle Time:
Truck Exchange Time: 0.50 Minutes Adjusted for site altitude: 0.500 Minutes
Truck Load Time: 0.580 Minutes Adjusted for site altitude: 0.580 Minutes
Truck Maneuver and Dump Time: 0.90 Minutes Adjusted for site altitude: 0.900 Minutes
Truck Travel (Haul & Return) Time: Road Condition: Firm, smooth, rolling, dirt/It. surfaced, watered,
maintained 3.0
C[RCES Cost Estimating Software