Dynamic Characteristic and Fatigue Accumulative Damage of a Cross Shield Tunnel Structure under Vibration Load

Table 1

Physical and mechanical parameters table.

Material	Density	Elastic modulus	Poisson’s ratio	Friction angle	Cohesion
	(kg/m^3)	(GPa)		(°)	(MPa)
Track	7850	200	0.2	-	-
Lining	2400	34.5	0.2	43.0	1.10
Surrounding rock	2000	3.65	0.325	33.0	0.45