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REV03994
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REV03994
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Entry Properties
Last modified
8/25/2016 1:02:00 AM
Creation date
11/21/2007 9:13:54 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980006
IBM Index Class Name
Revision
Doc Date
11/28/2005
Doc Name
Preliminary AdequacyReview Letter & Cost Summary
From
DMG
To
Kerr Coal Company
Type & Sequence
RN5
Media Type
D
Archive
No
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HOURLY PRODUCTION sheet 2 of 2 <br />Hauling Capacity <br />Basis <br />Material weight : 2,550 pounds/LCY <br />Material description <br />EaRh -Dry packed <br />Rated payload : 48,000 pounds <br />Payload capacity : 18.82 LCY <br />Scraper Bowl (volume) Basis <br />Struck volume : 14.00 LCY <br />Heaped volume : 20.00 LCY <br />Average volume : 17.00 LCY <br />Adjusted capacity : 17.00 LCY *** <br />hourly production reflects volume per scraper pair on push-pull motlels <br />Cvcle Time : Job Condition Corrections : Site altitude (ft.) : 8,200 <br /> Scraper Push dozer Source <br />Scraper loading time * : 2.00 minutes Altitude adj.: 1.000 NA (Cat HB) <br />Maneuver and spread time : 0.70 minutes Job efficiency : 0.830 NA (Cat HB) <br />'load time per scraper pair on push-pull models Net ('Affection : 0.830 NA <br />Travel time <br />Road condition description :Rutted diR, little maintenance, no water, 2"tire penetration <br />Haul Route <br />Seg. # Haul distance (feet) Grade (%) Roll. res. (%) Total res. (%) Velocity (fpm) Travel time (min.)** <br />1 1,900 3.40 5.00 8.40 916 2.11 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Return route <br />Total scraper team cycle time (load + haul + maneuver and spread + return) <br />Unadjusted unit production/hour : 181.17 LCY/hour "* Adjusted for job conditions <br />Optimal number of scrapers per push dozer : NA Selected number of scrapers <br />Adjusted single scraper team (unit) hourly production <br />Adjusted multiple scraper team (fleet) hourly production <br />Haul time : 2.11 minutes <br />Return time <br />JOB TIME AND COST <br />0.82 minutes <br />5.63 minutes <br />150.37 LCY/hour <br />1 scraper(s) <br />150.37 LCY/hour <br />150.37 LCY/hour <br />Fleet size : 1 Team(s) Total job time : 18.33 Hours <br />Unit cost : $0.989 /LCY Total job cost : $2,725 <br />° trevel time for each segment is adjusted For acceleration/deceleretion. <br />table velocities are max. attainable par total resistance shown, not average <br />
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