Numerical Simulation on Dynamic Response of Existing Tunnel to Moving-Axle Loads under the Influence of Oblique Shield Crossing the Intersection Area

Table 3

Material parameters of various types of concrete.

Location	Length (m)	Thickness (m)	Density (kg/m^3)	Elastic modulus (MPa)	Poisson ratio
Grouting layer (1)	1.6	0.15	2068	0.58	0.31
Grouting layer (2)	1.6	0.15	2163	6.8	0.27
Grouting layer (3)	1.6	0.15	2260	23	0.21
Segmental lining	1.6	0.4	2350	33600	0.23
Existing tunnel	—	0.7	2500	30240	0.2