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2009-11-03_REVISION - C1996083
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2009-11-03_REVISION - C1996083
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Last modified
8/24/2016 3:56:44 PM
Creation date
11/4/2009 1:12:45 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1996083
IBM Index Class Name
REVISION
Doc Date
11/3/2009
Doc Name
Revised 2009 Midterm Cost Estimate (Memo)
From
Jim Stark
To
Joe Dudash
Type & Sequence
MT3
Email Name
JJD
Media Type
D
Archive
No
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Truck/Loader Team Work cont'd Task #: 001 <br />Loading Tool Cycle Time : Number of loading tool passes required to fill truck <br />Excavators and front shovels -machine cycle time vs. job condition rating : SEVERE <br />- selected value within basic rating : SEVERE <br />Track loaders - material descr.:NA <br />- cycle time elements (min.) : Load : NA <br />Maneuver : NA Dump : 0.100 <br />Wheel and track loaders - unadjusted basic loader cycle time ( load, maneuver, and duml NA minutes <br />Cycle Time Factors Loading Condition Description Factor (min.) Source <br />Material : NA NA NA <br />Stockpile: NA NA NA <br />Truck ownership : NA NA NA <br />Operation : NA NA NA <br />Dump target : NA NA NA <br /> Net cycle time adjustment : NA minutes <br /> Adjusted loader cycle time (total time per loader pass) : 0.570 minutes <br /> Net load time per truck * : 2.950 minutes <br />Truck Cycle Time : • bulk of 1st loader cycle completed during truck exchange if adj. loader cycle time < exchange time <br />Truck exchange time **: 0.70 minutes........ Adjusted for site altitude : 0.700 minutes <br />Truck load time: 2.950 minutes........ Adjusted for site altitude : 2.950 minutes <br />Truck maneuver and dump time: 1.10 minutes........ Adjusted for site altitude : 1.100 minutes <br />- set at 0 if exchange time < adj. loader cycle time (truck exchange completed during 1 st loader cycle) <br />Truck travel (haul & return) time: Road condition : Firm, smooth, rolling, dirt or light surfaced, watered, maintained <br />Haul route <br />Road <br />segment# Haul distance Grade <br />res. (%) Rolling <br />res. (%) Total <br />resistance (%) Speed Travel time <br />(minutes) <br />1 600 17.00 3.00 20.00 379 1.587 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Return route : Haul time ** : 1.587 <br />1 600 -17.00 3.00 -14.00 1377 0.566 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />ninutes <br />' travel time shown for each segment includes acceleration/deceleration adjustment Return time**: 0.566 minutes <br />"total haul and return time shown includes altitude adjustment Total truck cycle time : 6.903 minutes <br />Loading tool unit production : 595.48 LCY/hour...... Adjusted for job efficiency : 494.25 LCY/hour <br />Truck unit production : 314.87 LCY/hour...... Adjusted for job efficiency : 261.34 LCY/hour <br />Optimal no. trucks/loading tool : 2 trucks........... Selected no. trucks/loader : 2 trucks <br /> Adjusted hourly truck team production : 522.69 LCY/hr <br /> Adjusted hourly single truck/loader team production : 494.25 LCY/hr <br /> Adjusted hourly multiple truck/loader team production : 494.25 LCY/hr <br />___...... .._..____ _ <br />JOB TIME AND COST __ <br />Fleet size : 1 Team(s) Total job time: 615.10 Hours <br />Unit cost : $1.122 /LCY Total job cost : $341,057 <br />sheet 2 of 2 <br />6 passes
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