Research Article

Effect of Near-Fault Pulsed Ground Motions on Seismic Response and Seismic Performance to Tunnel Structures

Table 4

Calculation scheme of controlling variable method of different interface parameters.

Fortification intensityFrequent ground motionBasis ground motionRare ground motionExtremely rare ground motion

VIII degree0.13 g0.4 g0.746 g1.08 g
Exceeding probability50-year 63%50-year 10%50-year 2%100-year 1%