Study on the Seismic Response and Aseismic Measure of Fault-Crossing Tunnels under Combined Action of Fault Dislocation and Seismic Motions

Table 1

Mechanical properties.

	Elastic modulus (MPa)	Density (kg/m^3)	Poisson’s ratio	Cohesion (kPa)	Friction angle (°)
Surrounding rock	6000	2300	0.30	700	39
Fault	300	1700	0.35	100	20
Lining	30000	2500	0.2	—	—
Grouting zone	6000	2200	0.30	900	35
Flexible joint	600	2100	0.35	150	25