EBK FOUNDATION DESIGN
EBK FOUNDATION DESIGN
3rd Edition
ISBN: 9780100663039
Author: YEUNG
Publisher: YUZU
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Chapter 2, Problem 2.8QPP

The capacity for a certain foundation system is estimated to be 620 kN with a COV of 0.3. The demand on the foundation is estimated to be 150 kN with a COV of 0.15. Compute the mean factor of safety of this foundation and its probability of failure assuming both capacity and demand are normally distributed.

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A rigid foundation is subjected to a vertical column load, P = 700 kN, as shown in Figure below. Estimate the elastic settlement due to the net applied pressure, Δσ, on the foundation. Given: B = 2m; L = 2m; Df = 1.5m; H = 3m; Es = 13,500 kN/m2; and µs = 0.35. (Useful formula and table can be found from Appendix)
The foundation (base) of a long retaining wall is required to support the load (including self-weight of the base and the wall) and moment (this comes from the lateral loads on the wall) shown in Figure below Determine the factor of safety against bearing capacity failure (using TCVN & Terzaghi bearing capacity theory) Would the settlement of the base be uniform? Discuss your answer.
A load of 800 Kip will be distributed on a circular foundation with a diameter of 20 feet, this structure will be located on the existing ground. The soil at the site has a unit weight of 105 lb/ft^3. Prepare a situation diagram to determine the vertical effective stress (lb/ft^2 no decimals) after building and loading the foundation at a point located:   a) 12 feet below its center. b) 12 feet below its edge.
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