Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN: 9781337705028
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 8, Problem 8.4P
A 10 ft diameter flexible loaded area is subjected to a uniform pressure of 1200 lb/ft2.
- a. Plot the variation of the vertical stress increase beneath the center with depth z = 0 to 20 ft.
- b. In the same plot, show the variation beneath the edge of the loaded area.
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Subject: soil mechanics
I want part b. Please help me with part b. Or can you answer both a and b ?
A 10 ft diameter flexible loaded area is subjected to a uniform pressure of 1200 lbs/ft2.
a. Plot the variation of the vertical stress increase beneath the center with depth z = 0 to 20 ft.
b. In the same plot, show the variation beneath the edge of the loaded area.
refer to the figure due to application of line load q1 and q2 . the vertical stress increase at point a is 42 kn/m2 determine the magnitude of q
2. (10 pts) Refer to Figure 1. Due to application of line
load q₁, the vertical stress increase at point A is 30
kN/m². Determine the magnitude of q1.
PIEN
91
45°
Figure 1
3 m
A
Aσ₂
3 m
Chapter 8 Solutions
Principles of Foundation Engineering (MindTap Course List)
Ch. 8 - Four point loads with the same magnitude of P are...Ch. 8 - A point load of 500 kN is applied at the ground...Ch. 8 - A point load of 1000 kN is applied at the ground...Ch. 8 - A 10 ft diameter flexible loaded area is subjected...Ch. 8 - For the flexible loaded area in Problem 8.4, plot...Ch. 8 - Two line loads q1 and q2 of infinite lengths are...Ch. 8 - A 9 ft wide and infinitely long flexible strip...Ch. 8 - Figure P8.8 shows a flexible rectangular raft that...Ch. 8 - Prob. 8.9PCh. 8 - Prob. 8.10P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- 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 10.43arrow_forwardRefer 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 10.46arrow_forwardAnswer fastarrow_forward
- Prob. 3 The plan of a flexible rectangular loaded area is shown in Figure below. The uniformly distributed load on the flexible area, q, is 100 kN/m². Determine the increase in the vertical stress, Aoz, at a depth of z = 2 m below a. Point A b. Point B c. Point C 4 m 1.6 m 2 m 0.8 m q = 100 kN/m² A 1.2 m-arrow_forwardRefer 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.arrow_forwardThe area shown in the figure carries a uniform pressure of 200 kPa. Find the total vertical effective stress at 5 meter below points A and B. Ysa 19 kN/m³ 8 m 5 m 7 m 6 marrow_forward
- Problem 3 [20 points] 2.0 ft 1.0 ft. 6.0 ft y = 104 lb/ft³ a. Calculate the vertical effective stress at the point A in lb/ft² as shown in the figure. [15 points] b. Calculate the horizontal effective stress (x or y direction). [5 points] y= 108 lb/ft³ 5.0 ft y=112 lb/ft³ K=0.68 v=0.45 Not Sharearrow_forwardThe flexible area shown in Figure is uniformly loaded. Given that q = 300kN/m² determine the vertical stress increase at point A. 8m 1.5m-radius 3m A from chart Take value of 16 Plan 300 kn/m All 3m farrow_forwardA flexible square area (2.4 m. x 2.4 m.) is subjected to a uniformly distributed load of q = 178 kN/m2. Determine the increase in vertical stress at the center at a depth of z =7 m.arrow_forward
- 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.arrow_forward(5 strip, given: B = 4 m; q = 50 kN/m². Determine the vertical stress increase at A (0, 3m). Refer to the figure. For a linearly increasing vertical loading on an infinite Uunit area (x. z) 9 Cengage Learning 2014arrow_forwardRefer to Figure attached, Due to the application of line loads q1 and q2, the vertical stress increase, A oz , at A is 30 kN/m2 . Determine the magnitude of q2 91 = 250 kN/m 92 - 3m - 2 m - 2 marrow_forward
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