Answer fast The center of a rectangular area at ground surface has Cartesian coordinates (0,0), andthe corners have coordinates (6,15). All dimensions are in meters. The area carries auniform pressure of 150 kPa.(a) Estimate the increase in the vertical stress at a depth of 20 m below ground surface ateach of the following locations: A(0,0), B(0,15), C(6,0), D(6,15) and E(10,25) usingBoussinesq's method.(b) Compare the results of part (a) with the 2:1 method.State your comments?

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Answered: The center of a rectangular area at…

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 10.20P

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Direct Stress 25 kN 20 kN 30 kN B• C D А +1.5 m→ 3 m 3 m 1. The cross-sectional area of bar ABCD is 600 mm². Determine the maximum normal stress in the bar.
%3D Determine the average normal stress in each bar if the diameter of each bar is 20 mm. Set P = 40 kN. TAC (TBC AB 1.5 m 2 m
4- A strip load of q= 100 lb/ft is applied over a width, B=10 ft. Determine the increase in vertical stress at point A located z =4.6 ft below the surface. Given: x-8.2 ft. q = load per unit arca
6. 7. Calculate the induced vertical stress at point A at a depth of 5 feet. The surface stress in the shaded areas is 3000 lb/ft2. Hint: The contributions of the shaded areas must be calculated separately and then added together. The contribution from the lower area will require the use of imaginary rectangles. (Answer: 1892 lb/ft2, yours may differ slightly) Four 40' diameter fuel tanks are constructed in a square pattern. The tanks apply a maximum surface pressure of 5000 lb/ft2. The spacing of the tanks is 50 feet center- center. What is the induced vertical stress beneath the center of the area at depths of 20 feet and 50 feet? (1400 and 1700 lb/ft2, some variation expected from chart reading)
Use Eq. (6.14) to determine the stress increase Δσ at z = 10 ft below the center of the area described in Problem 6.5.
CEN-333 Geotechnical
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
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
6 decimal places for the solution
Question 03: Determine the normal stress and draw the stress diagram of the beam at a point 1 m from the left support. 1.0m 20KN/M D ↓ ↓ ↓ ↓ J J 2.0m 1=225x106mm² Bean depth = z 300mm
The rectangular bar shown in the figure is subjected to a uniformly distributed axial loading of w = 11 kN/m and a concentrated force of P = 14 kN at B. Determine the magnitude of the maximum normal stress in the bar and its location x. Assume a = 0.9 m, b = 1.1 m, c = 20 mm, and d = 35 mm.
). A circular bar of 2 m length has a diameter 100 mm (E=200 Gpa, v=0.32, a = 11.7µ/c°). The bar's left end is built into a rigid wall and a gap of 0.5 mm exists between right wall and right end of the bar prior to an increase in th temperature. The temperature of the bar is increased uniformly by 80 c°. Determine the average axial stress and change in the diameter of the bar 15

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