2. A circular steel rod of length L and diameter d hangs in a mine shaft and holds an ore bucket of weight W at its lower end (see figure). (1) Obtain a formula for the maximum stress omax in the rod, taking into account the weight of the rod itself. (2) Calculate the maximum stress if L = 40 m, d = 8 mm, and W= 1.5 kN. %3D %3D d M,

2. A circular steel rod of length L and diameter d hangs in a mine shaft and holds an ore bucket of weight W at its lower end (see figure). (1) Obtain a formula for the maximum stress omax in the rod, taking into account the weight of the rod itself. (2) Calculate the maximum stress if L = 40 m, d = 8 mm, and W= 1.5 kN. %3D %3D d M,

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter10: Stresses In A Soil Mass

Section: Chapter Questions

Problem 10.18P: Refer to the flexible loaded rectangular area shown in Figure 10.47. Using Eq. (10.36), determine...

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A pole is held vertically on a soil surface by three equally spaced wires tied to the top of the pole. Each wire has a tension of 1 kN and is inclined at 45 degrees to the vertical.Calculate The increase in vertical stress in kPa at a depth 1 m below the surface. a. 3 b. 4 c. 2 d. 1
The square area ABCD shown in the figure carries a 2500 lb/ft2uniformload. Find the vertical stress increment due to the exerted load at a depth of 12 ft a. Below point G
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Refer to the flexible loaded rectangular area shown in Figure 10.47. Using Eq. (10.36), determine the vertical stress increase below the center of the loaded area at depths z = 3, 6, 9, 12, and 15 m. Figure 10.47
Refer to Figure 10.48. If R = 4 m and hw = height of water = 5 m, determine the vertical stress increases 2 m below the loaded area at radial distances where r = 0, 2, 4, 6, and 8 m. Circular contact area of radius R on the ground surface Figure 10.48
Refer to Figure 10.46. A flexible circular area of radius 6 m is uniformly loaded. Given: q = 565 kN/m2. Using Newmarks chart, determine the increase in vertical stress, z, at point A. Figure 10.46
Use Eq. (6.14) to determine the stress increase () at z = 10 ft below the center of the area described in Problem 6.5. 6.5 Refer to Figure 6.6, which shows a flexible rectangular area. Given: B1 = 4 ft, B2 = 6 ft, L1, = 8 ft, and L2 = 10 ft. If the area is subjected to a uniform load of 3000 lb/ft2, determine the stress increase at a depth of 10 ft located immediately below point O. Figure 6.6 Stress below any point of a loaded flexible rectangular area
Repeat Problem 10.12 for q = 700 kN/m2, B = 8 m, and z = 4 m. In this case, point A is located below the centerline under the strip load. 10.12 Refer to Figure 10.43. A strip load of q = 1450 lb/ft2 is applied over a width with B = 48 ft. Determine the increase in vertical stress at point A located z = 21 ft below the surface. Given x = 28.8 ft. Figure 10.43
The center of a rectangular area at the ground surface has Cartesian coordinates (0, 0), and one corner has coordinates (7, 18). All dimensions are in meters. The area carries a uniform pressure of 135 kPa. Estimate the stresses at a depth of 15 m below the ground surface at each of the following locations: (0, 0), (0, 18), (7, 0), (7, 18), and (12, 28).a. Obtain the values by the Boussinesq methodb. Compare the results with those of the 2:1 methodc. Comment on the resultsHint: In the Boussinesq method, the equations attached can be used.
The center of a rectangular area at the ground surface has Cartesian coordinates (0, 0), and one corner has coordinates (7, 18). All dimensions are in meters. The area carries a uniform pressure of 135 kPa. Estimate the stresses at a depth of 15 meters below the ground surface at each of the following locations: (0, 0), (0, 18), (7, 0), (7, 18), and (12, 28).a. Obtain the values by the Boussinesq methodb. Compare the results with those of the 2:1 methodc. Comment on the resultsHint: In the Boussinesq method, the equations attached can be used.
18- Pressure applied equally on a rock: A. differential pressure B. directed pressure C. shear pressure D. confining pressure
A circular water tank with a radius of 1.5 m and a weight of 364 kN sits on the ground surface. Determine the increase in stress (kPa) at a depth of 1 m below the center of the tank using Boussinesq chart method. Provide your answer to 2 decimal places. Do not provide units in your answer.