WebTABLE 9.4 Fill factors for hydraulic hoo buckets Material Fill factor (%) Moist foam sandy clay 100-110 Sand and gravel 95-110 Rockpoorly blasted 40-50 Rock-well blasted 60-75 … WebUse Tables 9.4 and 9.5 to find the bucket fill factor and cycle time. If a range is given, use the average value. The exchange time is 0.60, 0.80, 1.00, and 1.20 min. respectively for the four trucks. The material is being hauled to a fill located 4.0 miles away. The trucks average 30 mph during the haul and 40 mph during the return.
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WebBucket, sand Power jaws primarily used for crushing concrete. Cutter/processor According to the US Department of the Army (TM 5-331B) what would be the job efficiency factor … WebQuestion: Homework 6- Chapter 9 Problem 1: A crawler hoe having a 2 -cy bucket and whose cost per hour, including the wages to an operator, is $109 will excavate and load haul units under each of the stated conditions. The maximum digging depth of the machine is 22 ft. Determine the cost per bank cubic yard for each condition. (Condition 1: 315 bey/hr, … brut architecture and urban design
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Websecond important component to predicting clamshell dredge production is bucket fill factor. This is the percent of the bucket that will fill with sediment depending on the type of soil being excavated. Using cycle time as the basis for production calculation a spreadsheet has been created to simplify the calculation of production and project cost. WebProduction Estimating Production (Lm3)= CxSxVxBxE Where: C=Cycles/hr (Table 4.6) S=Swing depth factor (Table 4.7) V=Heaped bucket volume (Lm3) B=Bucket fill factor (Table 4.2) E=Job efficiency Table 4.6 - Standard cycles per hour for hydraulic backhoes Machine Size Wheel tractor Small Excavator 1 yd (0.76 m3) or Less Type of Material … WebThe shovel production in BCY per Hour Percent Optimum Height Average Height X 100 Optimum Height Production 3,600 sec XQ x FX (AS:D) 1 E 60-min hr volume х correction [9.1] where Q = heaped bucket capacity (lcy) F = bucket fill factor AS:D = angle of swing and depth (height) of cut correction t = cycle time in seconds E = efficiency (min per … brut axa prevention