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Which of the following values of K0 is used to compute the stress in the vicinity of a cylindrical tunnel?

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+1 vote
in Geotechnical Engineering II by (93.7k points)
Which of the following values of K0 is used to compute the stress in the vicinity of a cylindrical tunnel?

(a) K0 = 1

(b) K0 = μ / 1-μ

(c) K0 = 0

(d) All of the mentioned

I have been asked this question in an interview for job.

This intriguing question comes from Classes of Underground Conduits in division Shafts, Tunnels and Conduits of Geotechnical Engineering II

1 Answer

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by (243k points)
Correct answer is (d) All of the mentioned

Easy explanation: The problem of computing the stress in the vicinity of a cylindrical tunnel corresponding to the state of elastic equilibrium has been solved by Mindlin using the following valued of K0:

i) K0 = 1 ii) K0 = μ / 1-μ iii) K0 = 0.

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