2014-07-02_REVISION - C1996083 ‎(4)‎

• Permit No: C1996083
• IBM Index Class Name: Revision
• Doc Date: 7/2/2014
• Doc Name: Cost Estimate
• From: DMRS
• To: Bowie Resources, Inc
• Type & Sequence: TR87
• Email Name: SLB
• Media Type: D
• Archive: No

Bowie No. 2 Mine C1996083
Technical Revision No. 87 Page 4 of 5
Truck Bed (volume) Basis:
Material:
Material 3/4" to 6" diameter 0.00
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: 11.03 LCY
Loading Tool Capacity
I Nominal target 0.00
1 0.000
1 (Cat HB)
Bucket Size Class: NA
Rated Capacity:
1.800
LCY (heaped)
Bucket Fill Factor:
0.875
Loose material - 1" and over (85 - 90 %) 0.875
Adjusted Capacity:
1.575
LCY
Job Condition Corrections:
Site Altitude (ft.): 6000 feet
Net Correction: 0.830 0.789
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): 0.450 minutes
7 passes
Cycle Time Factors
Factor (min.)
Source
Material:
Material 3/4" to 6" diameter 0.00
Truck
Loader
Source
Altitude Adj :
1.000
0.950
(CAT HB)
Job Efficiency:
0.830
0.830
(CAT HB)
Net Correction: 0.830 0.789
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): 0.450 minutes
7 passes
Cycle Time Factors
Factor (min.)
Source
Material:
Material 3/4" to 6" diameter 0.00
0.000
(Cat HB)
Stockpile:
Dumped by truck 0.02
0.020
(Cat HB)
Truck Ownership:
Common ownership of trucks and loaders -0.04
-0.040
(Cat HB)
Operation:
I Inconsistent operation 0.04
1 0.040
1 (Cat HB)
Dump Target:
I Nominal target 0.00
1 0.000
1 (Cat HB)
Truck Cycle Time:
Truck Exchange Time: 0.50
Truck Load Time: 2.920
Truck Maneuver and Dump Time: 0.90
Truck Travel (Haul & Return) Time:
Net Cycle Time Adjustment:
Adjusted Loader Cycle Time:
Net Load Time per Truck:
0.020 minutes
0.470 minutes
2.920 minutes
Minutes Adjusted for site altitude: 0.500 Minutes
Minutes Adjusted for site altitude: 3.074 Minutes
Minutes Adjusted for site altitude: 0.900 Minutes
Road Condition: Firm, smooth, rolling, dirt/It. surfaced, watered,
CIRCES Cost Estimating Software