Research Article

Study on Response and Influencing Factors of Shield Single/Twin Tunnel under Seismic Loading using FLAC 3D

Table 1

Parameters of tunnel and soil.

Tunnel parametersSoil parameters

Burial depth (m)50Density (kg/m3)2000
Diameter (m)10Shear wave speed (m/s)300
Thickness (m)0.5Friction angle (°)23
Density (kg/m3)2500Bonding force (MPa)0.03
Modulus of elasticity (MPa)24.8Poisson’s ratio0.3
Poisson’s ratio0.2Damping ratio (%)5