2009-06-18_PERMIT FILE - C1981018A

• Permit No: C1981018A
• IBM Index Class Name: Permit File
• Doc Date: 6/18/2009
• Doc Name: Reclamation Cost Estimate
• Section_Exhibit Name: Illustration 47
• Media Type: D
• Archive: Yes

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HOURLY PRODUCTION sheet 2 of 2
Hauling Capacity :
Scraper Payload (weight) Basis : I Scraper Bowl (volume) Basis :
Material weight
Material description :
USER-PROVIDED WEIGHT DATA
2,550 pounds/LCY
Struck volume : 24.00 LCY
Heaped volume : 34.00 LCY
Average volume : 29.00 LCY
Adjusted capacity : 29.00 LCY ***
Rated payload : 75,000 pounds
Payload capacity: 29.41 LCY
hourly production reflects volume per scraper pair on push-pull models
Cycle Time : Job Condition Corrections : Site altitude (ft.): -5,300---
Scraper Push dozer Source
Scraper loading time 1.00 minutes Altitude adj.: 1.000 NA (Cat HB)
Maneuver and spread time : 0.60 minutes Job efficiency : 0.830 NA (Cat HB)
• load time per scraper pair on push-pull models Net correction : 0.830 NA
Travel time :
Road condition description :Firm, smooth, rolling, dirt/It. surfaced, watered, maintained
Haul Route :
Seg. # Haul distance (feet) Grade (%) Roll. res. (%) Total res. (%) Velocity (fpm) Travel time (min.)**
1 800 -1.00 3.00 2.00 2939 0.54

Haul time :
Return route 0.54 minutes
1 800 1.00 3.00 4.00 2910 0.45

`• 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 : 1,344.62 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 : 0.45

2.59
1,116.04
2
1,116.04
3,348.12 minutes

minutes
LCY/hour
scraper(s)
LCY/hour
LCY/hour