5. A crawler hoe having a 3-cy bucket and whose cost per hour, including the wages to anoperator, is $86, will excavate and load haul units under each of the stated conditions.The maximum digging depth of the machine is 25 ft. Determine the cost per bank cubicyard for each condition.Condition(1)(2)(3)(4)MaterialSandy clayHard clayRock, wellblastedSand and gravelDepth of excavation (ft)Angle of swing (degrees)106088181520909000150Percent swellEfficiency factor (min-hr) 455024205050553513

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Answered: 5. A crawler hoe having a 3-cy bucket…

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter18: Pile Foundation

Section: Chapter Questions

Problem 18.13P

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Q.3/A Crawler hoe having a three Cyd bucket and whose cost per hour, including the wage to an operator, is $95 will excavate and load haul units under each stated condition. The maximum digging height of the machine is (25 ft.). Determine the cost of one cubic yard for each condition. Condition 1 2 3 Material Depth of excavation Percent swell Angle of swing Efficiency factor (min/hr) Sandy clay Hard clay Rock, well blasted 18 15 35 90 50 10 20 60 45 60 90 50 4 Sand & gravel 20 13 150 55
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A hydraulic excavator with a 2 cubic yard heaped capacity bucket is excavating in common earth. The depth of the excavation is 8 feet. The excavator has a maximum rated digging depth of 16 feet. The excavated material will be positioned so that the swing angle is 75 degrees. The job efficiency is 55 minutes per hour. Find the expected production per hour.
A crawler hoe having a 3 -cy bucket and whose cost per hour, including the wages to an operator, is $150, will excavate and load trucks under each of the stated conditions. The maximum digging height of the machine is 26 ft. Determine the cost per cubic yard for each condition.
Calculate the total operation time for this construction activity if the volume of soil to be removed is 8 cu.m. (considered 33% for bulking of materials.) The speed of dumptruck is 30 kph and travel distance (round trip) from the source to disposal area vice-versa is 6 km. The bucket size of excavator is 0.50 cu.m at 0.50 min loading time, tipping time is 4 mins. a. 15.18 minutes b. 22.02 minutes c. 25.32 minutes d. 30.00 minutes
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11.2 A crawler hoe with a 3-cy bucket and a cost per hour, including the wages to an operator, of $86 will excavate and load haul units under each of the stated conditions. The maximum digging depth of the machine is 25 ft. Determine the cost per bank cubic yard for each of the stated conditions. Condition Material Depth of excavation (ft) Angle of swing (degrees) Percent swell Efficiency factor (min-hr) (1) Sandy clay 10 60 20 45 (2) Hard clay 18 90 50 (3) Rock, well blasted 15 90 50 (4) Sand and gravel 20 150 13 55
A crawler hoe having a 3 1/2 cy bucket and whose cost per hour, including the wages to an operator, is $130 will excavate and load haul units under each of the stated conditions. The maximum digging depth of the machine is 26 ft. Determine the cost per bank cubic yard for each condition. (1) Rock, well blasted Condition (2) Sand and Material gravel 15 Depth of excavation (f) Angle of swing (degrees) Percent swell 14 90 120 15% Efficiency factor (min per hr) 40 45 $0.916/bcy 50.451/bcy 50.954/bcy $0.417/bcy 50.897/bcy $0.394/bcy 50.988/bcy O 50 378/bcy
5. A contractor is getting soil fill from a 300 ft x 200 ft borrow pit. The soil will be excavated to a depth of 3 ft. The swell factor of the soil is 20% and the specific weight of the soil after excavation will be 115 lb/ft3. A single truck will be used to transport all the soil volume to a dump site. The truck's maximum capacity per load is the lesser of 12 yd3 or 15 tons. How many loads will be required to transport the soil fill to the dump?
A contractor is to excavate an area of 350′ × 150′ to a depth of 9′ and haul it by dump truck to a site where it is to be used for fill. The soil will then be fully compacted. If the swell factor is 25 percent and the shrinkage factor is 18 percent. Estimate the total bare cost for the job (excavation only) using a 2½ CY front-end loader, track mounted. Consider average nation price. Use the crew below.
What is Compaction grouting? Describe its procedure.

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