Impact of In Situ Stress Distribution Characteristics on Jointed Surrounding Rock Mass Stability of an Underground Cavern near a Hillslope Surface

Table 3

Physicomechanical parameters of intact rock mass and precast fissure.

Rock type	Density; (g/cm^3)	Elastic modulus (GPa)	Poisson’s ratio	Shear strength		Tensile strength (MPa)
				Friction angle (°)	Cohesion (MPa)
Intact rock	2,610	5.9	0.2	55	3	7.5
Rock joint	2,000	0.057	0.25	26	0.05	0