Mining Engineering > GATE 2023 > Rock Mechanics
A Mohr-Coulomb failure envelop of a sandstone rock is given as
σ1=30+3.5σ3 where σ1 and σ3,
measured in MPa, are the major and minor principal stresses respectively. The angle of the failure plane with the σ3 axis in degree is _________. [rounded off to 1 decimal place]

Correct : 27.8

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Mohr Coulomb failure envelope sandstone rock mechanics GATE Mining Engineering 2023 mining engineering gate failure plane angle principal stresses sandstone GATE 2023 question 30 Mohr Coulomb failure angle failure plane

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