Numerical Simulation of Cracking Behavior of Precracked Rock under Mechanical-Hydraulic Loading

Table 1

Schemes of the strength parameters.

Nos.	E1 (GPa)	E2 (GPa)	Poisson’s ratio	Yield strength (MPa)	Tensile strength (MPa)
SP1	20	5	0.2	60	1.0
SP2	20	5	0.2	60	4.5
SP3	20	5	0.2	60	5.0
SP4	20	5	0.2	60	5.5
SP5	20	5	0.2	60	10.0

E1 and E2 denote Young’s modulus of the rock and flaw, respectively.