Research Article

Seismic Response of a Tunnel Embedded in Compacted Clay through Large-Scale Shake Table Testing

Table 1

Main parameters of shake table facility.

Technical parameterTable ATable BTable C

Table size (m × m)4 × 44 × 44 × 4
Maximum specimens weight (ton)353535
Maximum overturning moment (ton·m)353535
Maximum turning moment (ton·m)202020
Range of operating frequency (Hz)0.1–500.1–500.1–50
X direction moving distance (m)0.05.0–20.05.0–20.0
X direction maximum displacement (mm)250250250
Y direction maximum displacement (mm)250250250
Z direction maximum displacement (mm)160160160
X direction maximum velocity (mm/s)X: ±1000X: ±1000X: ±1000
Y direction maximum velocity (mm/s)Y: ±1000Y: ±1000Y: ±1000
Z direction maximum velocity (mm/s)Z: ±1000Z: ±1000Z: ±1000
X direction maximum acceleration (g)X: ±1.0X: ±1.0X: ±1.0
Y direction maximum acceleration (g)Y: ±1.0Y: ±1.0Y: ±1.0
Z direction maximum acceleration (g)Z: ±1.6Z: ±1.6Z: ±1.6
Motion Dofs6 Dofs in 3 direction6 Dofs in 3 direction6 Dofs in 3 direction