Study on Seismic Response and Damping Measures of Surrounding Rock and Secondary Lining of Deep Tunnel

Table 1

Rock dynamics parameters.

Name	Surrounding rock	Anchor	Initial support	Tunnel lining
Modulus of elasticity E (Pa)	1.64e^9	198e^9	23.5e^9	30.78e^9
Poisson’s ratio	0.42	0.23	0.24	0.22
Weight (kg/m^3)	18.33	25.32	23.16	23.33
Cohesion C (MPa)	0.19
Angle of internal friction p (°)	23