EBK FOUNDATION DESIGN
3rd Edition
ISBN: 9780100663039
Author: YEUNG
Publisher: YUZU
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Chapter 3, Problem 3.7QPP
A vertical load of 300 kN is applied to a
- Compute the induced vertical stress,
- Compute the induced vertical stress,
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Consider a circularly loaded flexible area on the ground surface. Given: radius of the circular area, R = 3 m; uniformly distributed load, q = 250 kN/m 2.Calculate the vertical stress increase Δσ at a point located 5 m (z) below the ground surface (immediately below the center of the circular area).
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Chapter 3 Solutions
EBK FOUNDATION DESIGN
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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
- A point load of 500 kN is applied at the ground level. Plot the lateral variation of the vertical stress increase at depths of 2 m, 3 m, and 4 m below the ground level.arrow_forwardA point load of 1000 kN is applied at the ground level. Plot the variation of the vertical stress increase z with depth at horizontal distances of 1 m, 2 m, and 4 m from the load.arrow_forwardA point load of 1000 kN is applied at the ground level. Plot the variation of the vertical stress increase Δσ with depth at horizontal distance of 1 m, 2 m, and 4 m from the load.arrow_forward
- A 10 ft diameter flexible loaded area is subjected to a uniform pressure of 1200 lb/ft2. Plot the variation of the vertical stress increase beneath the center with depth z = 0 to 20 ft. In the same plot, show the variation beneath the edge of the loaded area.arrow_forwardFor the same line loads given in Problem 10.8, determine the vertical stress increase, z, at a point located 4 m below the line load, q2. Refer to Figure 10.41. Determine the vertical stress increase, z, at point A with the following values: q1 = 110 kN/m, q2 = 440 kN/m, x1 = 6 m, x2 = 3 m, and z = 4 m. Figure 10.41arrow_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
- The water table in an 8 m thick silty sand deposit lies at a depth 3 m below the ground level. The entire soil above the water table is saturated by capillary water and the saturated unit weight is 18.8 kN/m^3 . Calculate the a) total vertical effective stress, b) the porewater pressure, and c) the vertical effective stress at 8 m below the ground level. Express answers in kPa rounded to the first decimal place.arrow_forwarda) determine the horizontal effective stress at A. (Ans. 53.36 kPa) b) determine the lateral effective stress at point A if the lateral earth pressure coefficient at rest Ko=0.50. (Ans. 26.68 kPa) c) determine the lateral total stress at point A.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 vertical load of 260 kN is applied to a 1.2 m * 1.2 m area at the ground surface that islevel. Compute the induced vertical stress, ∆sz, at a point 1.5 m below the corner of thissquare loaded area.arrow_forwardA layer of saturated clay 4m thick is overlain by sand 5m deep, the water table being 3m below the surface. The saturated unit weights of the clay and sand are 19 and 20 kN/m^3, respectively; above the water table the (dry) unit weight of the sand is 17 kN/m^3 . Determine the effective stress at mid-height of the clay layer in kPa. Round your answer to 2 decimal places.arrow_forwardThe water table in a 5-meter soil profile is located 1 meter below the ground. The soil above the water is also saturated due to capillary action. The saturated unit weight of the soil per cubic meter is 20.15 KN. What is the total effective stress acting at point A, which is 0.70 meter above the lowest point?arrow_forward
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