Study on Hysteretic Fracture of Naturally Cracked Surrounding Rock

Table 2

Physical properties of the numerical model material.

	Elastic modulus/GPa	Poisson’s ratio	Tensile strength/MPa	/MPa	/°
Initial value	8.7	0.1	7.0	15.0	50
Residual value	8.7	0.1	0.01	13.0	40