Research Article

Dynamic Response Simulation of Lining Structure for Tunnel Portal Section under Seismic Load

Table 1

Mechanical parameters of materials.

ParametersRockLining

Deformation modulus (GPa)3.028.0
Poisson ratio0.300.17
Cohesion force (MPa)0.51.8
Internal friction angle (°)35.040.0
Tensile strength (MPa)1.01.27
Compressive strength (MPa)20.011.9