Study on Failure Difference of Hard Rock Based on a Comparison Between the Conventional Triaxial Test and True Triaxial Test

The study on the failure difference of deep hard rock based comparison between conventional and true triaxial tests can help us better understand fracture processes characteristics mass. Therefore, this article carries out a comparative analysis under stress states. Within scope study, it is found that brittle–ductile transformation properties be intuitively reflected in stress–strain curve mode. transition point also determined by peak residual strengths. strength increases with increase ? 2 , strain decreases drop post-peak becomes more obvious tends toward Class II brittle after . When 3 relatively high, angle regularity. Compared conditions, differential stress-induced anisotropy biggest This supply useful references to complex