Principles of Foundation Engineering (MindTap Course List)
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 6, Problem 6.2P

A 5.0 ft wide square footing is placed at 3.0 ft depth within the ground where c′ = 200 lb/ft2, ф′ = 25°, and γ = 115.0 lb/ft3. Determine the ultimate bearing capacity of the footing using Terzaghi’s bearing capacity equation and the bearing capacity factors from Table 6.1. What is the maximum column load that can be allowed with a factor of safety of 3.0?

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3. A square footing that carries an axial load of 150000kg has its bottom resting on a ground water table at a depth of 2.5m from the ground surface. Take PDRY = 1860kg/m3 and PSAT = 1950kg/m3, c = 1600kg/m2, ø = 30degrees. Use the approximate formulas for the determination of the bearing capacity factors. a.Compute the required width of the footing using a factor of safety of 2. b.Compute the ultimate bearing capacity of the soil. c.Compute the net factor of safety. d.Compute the net soil pressure.
A rectangular footing with width (B) = 6 ft and length (L) = 8 ft is subjected 5b) (P) = 75 k (shown below). The footing is 3 ft thick and flush with the ground surface. Assume x = 0.75 ft and y = 0.5 ft and solve for the eccentricity in the B direction (eB) and the eccentricity in the L direction (eL). Is this foundation adequately sized to resist overturning (i.e., is it in full bearing or partial bearing)? If it is in full bearing, compute the maximum and minimum pressure under the footing. an eccentric load Top View L y В
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CE 414 Lecture 02: LRFD Load Combinations (2021.01.22); Author: Gregory Michaelson;https://www.youtube.com/watch?v=6npEyQ-2T5w;License: Standard Youtube License