2010-10-08_PERMIT FILE - C1980007

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 10/8/2010
• Doc Name: CIRCES Cost
• Section_Exhibit Name: Exhibit 53 Reclamation Cost Estimate Part 3
• Media Type: D
• Archive: No

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HOURLY PRODUCTION sheet 2 of 2
Hauling Capacity :
Basis :
Scraper Bowl (volume) Basis :
Material weight
Material description
Earth - Dry packed
Rated payload
Payload capacity
Cycle Time :
2,550 pounds/LCY Struck volume : 21.00 LCY
Heaped volume : 31.00 LCY
Average volume : 26.00 LCY
75,000 pounds Adjusted capacity : 26.00 LCY
29.41 LCY *** hourly production reflects volume per scraper pair on push-pull models
Scraper loading time * : 1.00
Maneuver and spread time : 0.60
* load time per scraper pair on push-pull models
Job Condition Corrections : Site altitude (ft.) : 6,300
Scraper Push dozer Source
minutes Altitude adj.: 1.000 NA (Cat HB)
minutes Job efficiency : 0.830 NA (Cat HB)
Net correction : 0.830 NA
Travel time :
Road condition description :Rutted dirt, little maintenance, no water, I" tire penetration
Haul Route :
Seg. # Haul distance (feet) Grade (%) Roll. res. (%) Total res. (%) Velocity (fpm) Travel time (min.)**
1 200 8.80 4.00 12.80 710 0.30

Haul time
Return route :
** travel time for each segment is adjusted for acceleration/deceleration. Return time
table velocities are max. attainable per total resistance shown, not average
Total scraper team cycle time (load + haul + maneuver and spread + return)
Unadjusted unit production/hour : 1,561.07 LCY/hour *** Adjusted for job conditions
Optimal number of scrapers per push dozer : NA Selected number of scrapers
Adjusted single scraper team (unit) hourly production
Adjusted multiple scraper team (fleet) hourly production
0.30
0.10 minutes
0.10 minutes
2.00 minutes
1,295.69 LCY/hour
2 scraper(s)
1,295.69 LCY/hour
1,295.69 LCY/hour