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…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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4. A crawler hoe having a 2% -cy bucket and whose cost per hour, including the wages to an operator, is $67, will excavate and load haul units under each of the stated conditions. The maximum digging depth of the machine is 20 ft. Determine the cost per bank cubic yard for each condition. (Condition 1. 300 bey/hr, $0.223/bey; Condition 2.319 bey/hr, $0.210/bcy; Condition 3. 128 bey/hr, $0.523/bcy) Condition Material Depth of excavation (ft) Angle of swing (degrees) Percent swell Efficiency factor (min-hr) 45 (1) Moist loam, earth 12 60 (2) (3) Sand and gravel Rock, well blasted 16 14 120 80 14 50 45
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
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
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.
Assuming that each load is a full-capacity load, howmany truckloads are required to construct the fill?
2: Děšign and Analysis - make sure to show all calculations, correct units and box answers for all problems. Problem 1 : Scrapers will deliver to the project 500 lcy per hr of fill material (dry clay). A self-propelled tamping foot roller will be used to compact the fill. (Rolling width is 84 in.) The fill material will be placed in 4 inch compacted lifts. The loose lift is about 10 inches. Test strip compaction information indicates that 8 passes at 4 mph are required to obtain the required density. Assume a 55 min working hour. Q1: Calculate the roller production in CCY/hr. 22: Determine the number of rollers required to support the scraper operation.
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. Assuming that each load is a full-capacity load, howmany truckloads are required to construct the fill?b. What should be the volume of the pit that remains in theborrow area after all the material required for the fill hasbeen removed?c. How many liters of water will have to be added per truckload,assuming that the moisture lost by evaporation duringexcavation, haulage, and handling is negligible?d. If the fill should become saturated at some time subsequentto the construction and does not change volumeappreciably, what will be its saturation water content?
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
What is Compaction grouting? Describe its procedure.
Determine the consolidation settlement of piles group shown below. Sand y = 105 lb/ft³ Groundwater table 45 ft 2V:1H Clay Clay (not to scale) 30 ft Q₂ = 500 Kip di A A0(2) x 3 ft 27 ft 21 ft (3 40(3) 2V:IH 6 ft Cay Ysat = 115 lb/ft³ 48 ft = 0.82 C₁ = 0.3 Ysat = 120 lb/ft³ € = 0.7 12 ft C = 0.2 Rock Pile group: L = 9 ft: B,= 6 ft Ysat = 122 lb/ft³ 6te = 0.75 C₂ = 0.25
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.

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