Fundamentals of Geotechnical Engineering (MindTap Course List)
Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 10, Problem 10.24CTP
To determine

Show that σ3=σ1tan2(45ϕ2)2ctan(45ϕ2).

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A 20 m tape was used for measuring a line at an average temperature of 65º F. The measured distances on the ground and slope of the ground are as given below: 2º 18′ for 125 m 3º 30′ for 250 m 1º 42′ for a distance of 170 m If the temperature at which tape was standardised is 80º F, find the true length of the line. Take α = 6.2 × 10^(–6) /ºF.
Solve:    y′=xy^2
1. Determine the centroid of the shaded area. Use 4 decimal places for the final answer. B Y C y(x) A B A o Given . A = 5 in · B = 24 in C = 6in y(x) = 3-x^2/48
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