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
C
Haulinct Capacity :
Scraper Payload (weight) Basis :
Material weight : 2,550 pounds/LCY
Material description
Earth - Dry packed
Rated payload : 75,000 pounds
Payload capacity: 29.41 LCY
Cycle Time :
Scraper Bowl (volume) Basis :
Struck volume : 24.00 LCY
Heaped volume : 34.00 LCY
Average volume : 29.00 LCY
Adjusted capacity : 29.00 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. (%) I Velocity (fpm) Travel time (min.)**
1 500 3.00 3.00 6.00 1477 0.42

Return route :
Haul time : 0.42 minutes
" travel time for each segment is adjusted for accelerationideceleration. Return time : 0.28 minutes
table velocities are max. attainable per total resistance shown, not average
Total scraper team cycle time (load + haul + maneuver and spread + return) : 2.30 minutes
Unadjusted unit production/hour : 1,510.52 LCY/hour *** Adjusted for job conditions : 1,253.73 LCY/hour
Optimal number of scrapers per push dozer : NA Selected number of scrapers : 2 scraper(s)
Adjusted single scraper team (unit) hourly production : 1,253.73 LCY/hour
Adjusted multiple scraper team (fleet) hourly production : 3,761.20 LCY/hour
JOB TIME AND COST
• Fleet size : 3 Team(s) Total job time :_
Unit cost : $0.500 /LCY Total job cost :

0.62 Hours
$1,166