Table 1.

Calculation parameters of the materials.

Material Name	Elastic Modulus (E/GPa)	Density $\left({kg/m}^3\right)$	Poisson’s Ratio	Fiction Angle ($\mathbf{\Theta }{/}^{°}$)
Gravel	4	1.50 × ${10}^3$	0.43	25
Fault fracture zone	10	2.00 × ${10}^3$	0.38	20
Tunnel lining	30	2.50 × ${10}^3$	0.20	-