Experimental Analysis of Deformation Mechanics and Stability of a Shallow-Buried Large-Span Hard Rock Metro Station

Table 1

Physical-mechanical parameters of rock and similar material.

Material type	γ (kN·m^−3)	E (GPa)	σc (MPa)	σt (MPa)	μ	C (MPa)	Φ (°)
Prototype	24	10	30	4.5	0.25	15	38
Model	24	0.2	0.6	0.09	0.25	0.3	38