Research Article

Dynamic Response and Fatigue-Life Analysis of High-Speed Railway Tunnel Base with Defects

Table 1

Physical and mechanical parameters of rock blocks and joints.

TypeElastic modulus (GPa)Volume modulus (GPa)Shear modulus (GPa)Poisson’s ratioCohesion (MPa)Internal friction angle (°)Unit weight (kg/m3)

Block20.6015.109.520.245.0045.0023.00
JointN/AN/AN/AN/A0.505.00N/A