Research Article

Failure Characteristics of Joint Bolts in Shield Tunnels Subjected to Impact Loads from a Derailed Train

Table 3

Mechanical properties for joint bolts.

ParameterValue

Ultimate tension strength (MPa)800.00
Ultimate shear strength (MPa)586.40
Ultimate tension force (kN)652.80
Ultimate shear force (kN)478.50
Tension stiffness (EA) (MN)168.10
Shear stiffness (GA) (MN)64.65
Flexural stiffness (EI) (kN·m2)16.98