Research Article

Study on Seismic Response Characteristics of Shield Tunnel in Soil-Rock Combination Stratum

Table 6

Similar physical parameters of the foundation material model.

MaterialUnit weight γ (kN·m−3)Modulus of elasticity E/(MPa)Cohesion c/(kPa)Internal friction angle φ (°)

Silty clay17.90.630.217.8
Surrounding rocks21.220021735