Hydromechanical Coupling Characteristics of the Fractured Sandstone under Cyclic Loading-Unloading

Table 1

Mechanical property of the sandstone.

Sample no.	Confining pressure (MPa)	Peak strength (MPa)	Poisson’s ratio	Elastic modulus (GPa)	Cohesion (MPa)	Friction angle (°)
1	5	109.42	0.23	6.35	14.76	48.93
2	15	170.67	0.19	9.01
3	25	225.69	0.18	13.37