Principles of Foundation Engineering, SI Edition
9th Edition
ISBN: 9781337672085
Author: Das, Braja M., SIVAKUGAN, Nagaratnam
Publisher: Cengage Learning
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Chapter 9, Problem 9.6P
To determine
Find the elastic settlement below the middle of the given foundation.
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IV. A soil element is shown in Figure 3. (use equations)
130 kN/m²
+35kN/m²
30⁰
60 kN/m²
10
11.
12
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35 kN/m²
Figure 3
What is the value of the maximum stress in kPa?
What is the value of the normal stress acting at the plane AB in kPa?
What is the value of the shear stress acting at the plane AB in kPa?
Please explain and solve with a good explantion
a.What is the value of the maximum stress in kPa?
b.What is the value of the normal stress acting at the plane AB in kPa?
c.What is the value of the shear stress acting at the plane AB in kPa?
Chapter 9 Solutions
Principles of Foundation Engineering, SI Edition
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- 10.19 Refer to Figure 10.46. A flexible rectangular area is subjected to a uniformly dis- tributed load of q = 225 kN/m². Determine the increase in vertical stress, Ao, at a depth of z = 3 m under points A, B, and C. 6 m -2.4 m- 3m 1.2 m q- 225 kN/m2 E1.8 m→ Figure 10.46 U-- Cangage Leaming 2014arrow_forwardRefer to Fig 14. Determine the vertical stress increase, ∆?? , at point for B =3 m, q =60kN/m2, x =1.5 m, and z = 3 m.arrow_forwardDetermine the average stress increase below the center of the loaded area, between z = 3 m and z = 5 m. 5 m 3 m q=100 kN/m² L 1.5 m 1.5 m A J SECTION 3 m B L A 3 m PLAN VIEWarrow_forward
- Q1 A 25 m thick layer of clay is underlain by a layer of silt, as shown in the Figure. 1. Determine the effective stress at point A when Z=3 m. 2. Determine the effective stress at point B when h=3 m. 3. By changing h and Z, would you expect that the effective stresses at A and B can have the same value? WIZ 1² W.T 12 m B Clay e=0.6, G.-2.69 Clay w=30% Silt w=50%, G, 2.70arrow_forwardA 25 m thick layer of clay is underlain by a layer of silt, as shown in the Figure. 1. Determine the effective stress at point A when Z = 3 m. 2. Determine the effective stress at point B when h=3 m. 3. By changing h and Z, would you expect that the effective stresses at A and B can have the same value? wy Z 12 m B Clay e=0.6, G₁-2.69 Clay w=30% Silt w=50%, G,=2.70arrow_forwardDetermine the increase in vertical stress at a depth of 5 m below the centroid of the foundation shown in Figure 2.arrow_forward
- From the given soil formation of the soil with the following properties is shown in the figure. (see picture below) Compute the total stress at the mid-layer of the clay. (Answer: 260.745 kPa) Compute the effective stress at the mid layer of the clay. (Answer: 147.93 kPa) If a load of 1800 kN is acting on the footing 2m x 2m is placed on the ground, find the stress increase at the mid layer of the clay assuming a stress distribution of 1 horizontal to 2 vertical. (Answer: 11.64 kPa) *unit weight of dry sand = 14.72 kN/m3*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_forward3. The uniformly distributed vertical loads on the surface of a clay layer as shown in Figure below. Determine the vertical stress increase at A and B due to the loaded area. A and B are located at a depth of 5 m below the ground surface. y 2m q=200 kN/m² +—— 5—+— 2m q2 =150 kN/m² 8 3 Xarrow_forward
- A rectangular concrete slab, 3m x 4.5m shown in Figure 05.12, rests on the surface of a soil mass. The load on the slab is 1620 kN.1.) Determine the soil stress below the slab2.) Determine the vertical stress increase at point A3.) Determine the vertical stress increase at point B.arrow_forwardWhat will be the values of effective stresses in kN/m2 at point A (below figure) before and after reducing the water level by 2 meters? Below the second layer, there is a bedrock.arrow_forwardA uniform loading of 150kPa is applied at a 28 m Χ 28 m area. Please calculate the consolidation settlement of the clay layer used the middle of the clay layer to estimate the stress increment with the influence factor method). Cc = 0.4, Cs = 0.04, preconsolidation stress is 150 kPa and unit weight of water is 10 kN/m3. What is the settlement at the corner and center of the loading? What is the differential settlement between the corner and the center?arrow_forward
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