Q49
In the Hoek-Brown failure criterion, which parameter is NOT required?
A.
Uniaxial compressive strength
B.
Joint orientation
AnswerC.
Geological Strength Index
D.
Material constant mi
Answer: Option B
Solution
Answer: Option B
Solution:
Joint orientation is not directly used in the Hoek-Brown criterion, which is an empirical model using UCS, GSI, and mi to estimate rock mass strength.