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

HOURLY PRODUCTION sheet 2 of 2
Hauling Capacity :
Basis :
Material weight : 2,743 pounds/LCY
Material description :
USER-PROVIDED WEIGHT DATA
Rated payload : 75,000 pounds
Payload capacity: 27.34 LCY
Cycle Time :
Scraper Bowl (volume) Basis :
Struck volume : 24.00 LCY
Heaped volume : 34.00 LCY
Average volume : 29.00 LCY
Adjusted capacity : 27.34 LCY ***
'hourly production reflects volume per scraper pair on push-pull models
Job Condition Corrections : Site altitude (ft.) : 5,300
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
Scraper loading time * : 1.00
Maneuver and spread time : 0.60
* load time per scraper pair on push-pull models
•
Travel time :
Road condition description :Firm, smooth, rolling, dirt/lt. surfaced, watered, maintained
Haul Route :
Seg. # Haul distance (feet) Grade (%) Roll. res. (%) Total res. (%) Velocity (fpm) Travel time (min.)**
1 300 4.00 3.00 7.00 1362 0.30
2 200 15.00 3.00 18.00 508 0.31
3 1,250 -1.00 3.00 2.00 2939 0.67

Return route :
Haul time : 1.28 minutes
1 1,250 1.00 3.00 4.00 2910 0.61
2
_.-------- 200 -15.00 3.00 -12.00 1628 1.15
3 300 -4.00 3.00 -1.00 2972 0.61

" travel time for each segment is adjusted for acceleration/deceleration. Return time : 2.36 minutes
table velocities are max. attainable per total resistance shown, not average
Total scraper team cycle time (load + haul + maneuver and spread + return) : 5.24 minutes
Unadjusted unit production/hour : 626.15 LCY/hour *** Adjusted for job conditions : 519.70 LCY/hour
Optimal number of scrapers per push dozer : NA Selected number of scrapers : 2 scraper(s)
Adjusted single scraper team (unit) hourly production : 519.70 LCY/hour
Adjusted multiple scraper team (fleet) hourly production : 1,559.11 LCY/hour
JOB TIME AND COST
• Fleet size : 3 Team(s) Total job time : 73.16 Hours
Unit cost : $1.205 /LCY Total job cost : $137,470