2008-08-11_PERMIT FILE - C1992080

• Permit No: C1992080
• IBM Index Class Name: Permit File
• Doc Date: 8/11/2008
• Doc Name: Cost Estimate
• Section_Exhibit Name: Appendix 5-7 Bonding Calculations
• Media Type: D
• Archive: No

Date : 0542112008
User: TAK
Permit or other job action RN -03
Task description : Haul to gravel pit topsoil remaining in stockpiles #4 and #7
.
HOURLY EQUIPMENT COST
Model: Cat 657E w /push -pull Shift basis : 1 per day
Cost Breakdown :
Struck volume :
Job utilization %
Horsepower : 1045
Ownership cost/hour :
$132.14
NA
Weight (UST) : 80.07
Operating cost/hour :
$205.26
100
Cost data source : (CRG)
Operator cost/hour :
$24.95
NA
minutes **
Total unit cost/hour :
$
Total fleet cost/hour :
$724.71
...........................................................................................................................................................
::: ................................................................................................................................................................
MATERIAL Q UANTITIES
Loading time :
1.10
...............................
...............................
Initial
Swell
Loose
minutes
volume: 92,387 BCY
factor
: 1.4 29 volume:
131,981 LCY
Source of quantity take -off : Page 5-30 of permit application
Source of estimated swell factor DRMS estimate
HOURLY PRODUCTION ................................................................................................................................................................. ...............................
............................................................................................................................................................ ...............................
Hauling Capacity :
Scra Payload (weight) B asis : Scraper Bowl (volume) Basis:
Material weight: 2,900 pounds /LCY
Struck volume :
32.00
LCY
Material description :
Heaped volume:
44.00
LCY
Decomposed rock - 50% Rock, 50% Earth
Average volume:
38.00
LCY
Rated payload : 104,000 pounds
1,677
0.75
minutes **
Payload capacity : 35.86 LCY
Adjusted capacity :
35.86
LCY * **
Cycle Time (load + haul + spread + return) :
Loading time :
1.10
minutes
Job efficiency factor:
Maneuver and spreading time :
0.60
minutes
Travel time:
loading time per pair on push -pull models
Adjusted fleet production :
Route
Distance (feet)
Grade ( %)
Roll. res.( %)
Total res.( %)
Velocity (fpm)
Travel time (min.)
2.79
Haul:
1,000
2.0
5.0
7.0
1,677
0.75
minutes **
Return :
1,000
-2.0
5.0
3.0
2,958
0.34
minutes **
"travel time adjusted for acceleration and deceleration at load and dump points
velocities are max. attainable per total resistance
shown, not average
Total cycle time
2.79
minutes
Job Condition Correction Factors
:
Site altitude (feet)
: 7,000
Adjusted Hourly Production
Altitude adjustment factor
: 1.00 (Cat HB)
Unadjusted unit production :
1,541.34
LCY /Hour * **
Job efficiency factor:
0.83 (1 shift/day)
Adjusted unit production :
1,279.31
LCY /Hour
Adjusted fleet production :
1,279.31
LCY /Hour
Net job correction factor
: 0.83
' 2 times volume on push -pull models
...............................................................................................................................................................
JOB TIME AND COST :::::................................................................................................................................................................
...............................
...............................
Fleet size
: 2 Scraper(s)
Total job time :
103.17
Hours
Unit cost
: $0.56 /LCY
Total job cost :
$74,765
County : Plata
Site: Carbon Junction Mine
Abbreviation : none
Filename: C080 -038