A Compressive Damage Constitutive Model for Rock Mass with a Set of Nonpersistently Closed Joints under Biaxial Conditions

Figure 4

The effect of confining pressure on rock mass damage variable and climax strength.

(a) The change law of the sample’s damage variable with the joint dip angle under the different confining pressure

(b) The change law of the sample’s climax strength with the joint dip angle under the different confining pressure