Laserfiche WebLink
Truck/Loader Team Work cont'd Task #: 010 sheet 2 of 2 <br />Loading Tool Cycle Time : Number of loading tool passes required to fill truck passes <br />Excavators and front shovels -machine cycle time vs. job condition rating : NA <br />- selected value within basic rating : NA <br />Track loaders - material descr.: NA <br />- cycle time elements (min.) : Load : NA Maneuver : NA Dump : 0.100 <br />Wheel and track loaders - unadjusted basic loader cycle time ( load, maneuver, and dumi 0.625 minutes <br />Cycle Time Factors Loading Condition Description Factor (min.) Source <br />Material : Material 314" to 6" diameter 0.000 (Cat HB) <br />Stockpile : Conveyor or dozer piled 10 ft. high or less 0.010 (Cat HB) <br />Truck ownership : Common ownership of trucks and loaders -0.040 (Cat HB) <br />Operation : Constant operation -0.040 (Cat HB) <br />Dump target : Nominal target 0.000 (Cat HB) <br /> Net cycle time adjustment : -0.070 minutes <br /> Adjusted loader cycle time (total time per loader pass) : 0.555 minutes <br /> Net load time per truck * : 1.210 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: 1.210 minutes........ Adjusted for site altitude : 1.210 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 1st loader cycle) <br />Truck travel (haul & return) time: Road condition :Rutted dirt, little maintenance, no water, 2" tire penetration <br />Haul route <br />Road <br />segment# Haul distance Grade <br />res. (%) Rolling <br />res. (%) Total <br />resistance (%) Speed Travel time <br />(minutes) <br />1 200 0.00 4.00 4.00 3405 3.199 <br />2 1,950 11.00 3.00 14.00 552 2.895 <br />3 350 -7.00 5.00 -2.00 3512 0.151 <br /> <br /> <br /> <br /> <br /> <br />Keturn route : <br />Haul time ** : 6.245 minutes <br />1 350 7.00 5.00 12.00 1540 0.294 <br />_ 2 1,950 -11.00 3.00 -8.00 3512 0.108 <br />3 200 0.00 4.00 4.00 3540 0.057 <br /> <br /> <br /> <br /> <br /> <br />travel time shown for each segment includes acceleration/deceleration adjustment Return time**: <br />"total haul and return time shown includes altitude adjustment Total truck cycle time <br />Loading tool unit production : 1,166.23 LCY/hour...... Adjusted for job efficiency <br />Truck unit production : 229.33 LCY/hour...... Adjusted for job efficiency : <br />Optimal no. trucks/loading tool : 5 trucks........... Selected no. trucks/loader : <br />Adjusted hourly truck team production <br />Adjusted hourly single truck/loader team production <br />Adjusted hourly multiple truck/loader team production <br />JOB TIME AND COST <br />Fleet size : 1 Team(s) Total job time <br />Unit cost : $1.860 /LCY Total job cost <br />0.458 minutes <br />9.713 minutes <br />967.97 LCY/hour <br />190.34 LCY/hour <br />5 trucks <br />951.72 LCY/hr <br />951.72 LCY/hr <br />951.72 LCY/hr <br />7.71 Hours