Comments on the ISRM Suggested Method 'A Failure Criterion for Rocks Based on True Triaxial Testing'

摘要

Having read the ISRM Suggested Method "A failure criterion for rocks based on true triaxial testing" [3], I believe that it can be improved in several places. My comments and suggestions for modification or change are as follows: When writing about the linear version of Mogi's failure criterion (Eq. 2) in Section 3, the authors did not mention that formulae which relate the parameters a and b to cohesion, angle of internal friction and uniaxial compressive strength (Eqs. 3a-4b) are valid only for the axisymmetric state of stress. This omission may be misleading to readers who are not experts on the failure criteria for rocks.