+1 vote
in Geotechnical Engineering II by (93.8k points)
In active state, the minor principal stress σ3 is _________

(a) horizontal direction

(b) vertical direction

(c) can be both vertical and horizontal direction

(d) in no direction

I had been asked this question in an internship interview.

Question is taken from Earth Pressure Introduction in portion Failure Envelopes & Earth Pressure of Geotechnical Engineering II

1 Answer

0 votes
by (243k points)
The correct answer is (a) horizontal direction

To explain: In active state, the minor principal stress denoted by σ3    is in horizontal direction. While in the passive state, the minor principal stress σ3     is in vertical direction.

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