A 6-yd hydraulic shovel with a bottom-dump bucket is excavating common earth. The swing angle is 75 degree and job efficiency is 40 min/h. The bucket fill factor is 0.9. Estimate the shovel's hourly production in BANK measure. 604.8 BCY/h 263 BCY/h 318.5 BCY/h 483.84 BCY/h Question 2 For the same question: A 6-yd hydraulic shovel with a bottom-dump bucket is excavating common earth. The swing angle is 75 degree and job efficiency is 40 min/h. The bucket fill factor is 0.9, What is the job efficiency required to reduce the current cost per BCY by $5 if the shovel costs $5000 per hour? 1.3 0.666 0.7

A 6-yd hydraulic shovel with a bottom-dump bucket is excavating common earth. The swing angle is 75 degree and job efficiency is 40 min/h. The bucket fill factor is 0.9. Estimate the shovel's hourly production in BANK measure. 604.8 BCY/h 263 BCY/h 318.5 BCY/h 483.84 BCY/h Question 2 For the same question: A 6-yd hydraulic shovel with a bottom-dump bucket is excavating common earth. The swing angle is 75 degree and job efficiency is 40 min/h. The bucket fill factor is 0.9, What is the job efficiency required to reduce the current cost per BCY by $5 if the shovel costs $5000 per hour? 1.3 0.666 0.7

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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3. A hydraulic backhoe cuts a building basement that is uniformly 18-ft deep. The bottom of the basement is 80-ft x 130-ft, and the soil is OSHA Type B, common earth. Its heaped bucket capacity is 3.7-LCY. Job efficiency is 45-min/hr. The machine’s maximum 8-ft level cutting depth is 24-ft. You note that hauler access to position effectively is limited, so on average the site will permit a swing angle of 90-degrees between excavator cut and hauler bed. A. Determine the production rate in LCY/hr. B. Determine the duration in hours of the basement excavation activity.
Find the quarry productivity per hour for the quarry under the following conditions: • The length of the blade is (2.9) m, the width of the blade is (0.9) m. Clay sandy soil weighing (1601.8) kg / m on the bank scale. soil swelling coefficient (25%) . The transportation distance is (30) meters on flat ground Push-to-go speed is (2.4) km/h. Push back speed (5.6) km/h. The estimated power of the slingshot engine is (72) hp. Actual working minutes per hour Fixed time (0.32) minutes.
A frictional pile with a circular cross-section (diameter = D) is pushed into the soil to a distance (L) and then it is subjected to an axial force (P) on its top end. Derive a formula to calculate the normal stress in any section x.
The following pile with a diameter of 600mm is driven into clay strata as provided below: Calculate the end bearing capacity if Nc = 8.5 Determine the skin friction capacity of the pile Find the allowable load if the factor of safety is 3.0 Please answer this asap. For upvote. Thank you
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
3,9 Seepage problem (Soil Mechanics)
In the soil illustrated in the picture below, a 60-foot-long drilled pile is to be built using the open hole method. The pile will be 24 inches in diameter, and the bottom will be 60 inches in diameter. The soil conditions are homogeneous. Determine the allowable downward load capacity using a method. (The soil is in dry condition) (All the measurements are in feet) -1.5 Stiff silty clay Y = 105 lb/ft3 Su = 1600 lb/ft² Stiff silty clay Y = 108 lb/ft³ Su 1400 lb/ft² T Very Stiff silty clay y = 109 lb/ft³ Su = 4000 lb/ft² 12 25 23
7. If a 45 cm diameter pipe pile is driven into clayey soil to a depth of 12 m. (a) what would the allowable load capacity (Q) be? The water table is 2 m below the ground surface and the soil profile consists of two clay layers (refer to the figure below). Use the ß method to calculate skin friction and the R=30° for all clay layers. (b) Explain how you selected FS value you use. 12 m ▶ 9m 2m 45 cm Y = 18.5kN/m³ = 30kN/m² Ysat = 19kN/m³ C₂ = 30kN/m² Ysat = 20kN/m² S = 60kN/m²
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