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 8.12P
To determine
Find the stress increase at points A, B, and C.
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H.Q 5
Figure below shows an embankment load on a silty clay soil layer.
Determine the stress increase at points A, B, and C that are located at a
depth of 5 m below the ground surface.
+ 6 m
I Center line
IV:2H
IV:2H
10m
y=17 kN/m
?????
Fig 8 shows an embankment load for a silty clay soil layer. Determine the vertical stress increase at points A, B, and C.
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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- H.Q 5 Figure below shows an embankment load on a silty clay soil layer. Determine the stress increase at points A, B, and C that are located at a depth of 5 m below the ground surface. + 6m Center line IV:2H IV:2H 10m y =17 KN/m IIarrow_forwardAn embankment load on a silty clay soil layer as shown below. Determine the stress increase under the embankment at points A and B that are loaded at a depth of 6 m below the ground surface. Prob. 5 m 1H:2V 1H:2V 1H:1V 8 m Y=18 kN/m y=18 kN/m 6 m : B Aarrow_forward2arrow_forward
- (Use The Figure (10.20) to find the solution of this question) An embankment load on a silty clay soil layer as shown below. Determine the stress increase under the embankment at points A and B that are loaded at a depth of 6 m below the ground surface. 5 m 1H:2V, 1H:2V 1H:1V 8m y-18 kN/m y-18 kN/m" 6 m B IA Figure 10.19 Embankment loading 0.50 3.0 20 1.6 14 045 12 LO 040 09 07 0.35 06 030 04 - 025 020 02 0.10 005 Figure 10.20 Osterberg's chart for determination of vertical stress 0.00 due to embank- 0.01 100 ment loading 327 atendetoa Narrow_forward2 m e = 0.53 Gs = 2.65 A 4 m Dry Sand e = 0.47 6 m Saturated Sand Gs = 2.67 a. Determine the effective stress at point A in kPa. b. Determine the effective stress at point B in kPa. b. Determine the effective stress at point C in kPa. c. Determine how high (m) from point B will the water table rise up so that the effective stress at C is 125 kpa.arrow_forward5. A thick layer of stiff saturated clay is underlain by a layer of sand under artesian pressure. A deep cut is made in the clay layer as shown in the attached figure. Determine: [2] a. The total stress at point A. b. The factor of safety against heaving at point A, if the effective stress is 12% of the total stress.arrow_forward
- A clay formation having a depth of 4 m. underlies a sand formation having a depth of 3 m. The dry unit weight of sand is 16.5 kN/m3 and the saturated unit weights of clay and sand are 20.4 kN/m3 and 19.6 kN/m3 respectively. The groundwater table is at the interface of the sand and clay. Compute the effective stress at the bottom of clay. Use 3 decimal places in MPa.arrow_forwardA. Compute the effective stress at the bottom of the clay. B. If the water table rises to the level of the soil surface, what is the effective stress at the bottom of the clay? Fground surface Y-15.6 kN/m Yrar-16.6 KN/m3 4 m water table Clay 5 m:arrow_forward2. A rectangular loaded area ABCD shown in figure below carries a load of 80kN/m? Using Fadum chart find the vertical stress increment at a depth of 3 m below point G. 0.6 m 0.6 m 1.5 m D.arrow_forward
- A vertical load of 300 kN is applied to a 1.5 m * 1.5 m area at the ground surface that is level.a. Compute the induced vertical stress, ∆sz, at a point 2.0 m below the corner of this squareloaded area.b. Compute the induced vertical stress, ∆sz, at a point 2.0 m below the center of this squareloaded area.arrow_forward5- Determine the stress increase at point A due to the embankment load. 10.4 m 9.1 m Unit weight = 17.6 kN/m3 1.75 1.75 6.8 marrow_forwardRepeat 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_forward
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