Effect of Vertically Propagating Shear Waves on Seismic Behavior of Circular Tunnels

Table 1

Sections specifications used in the analyses.

Section	Tunnel axis level (m)	Groundwater level (m)	Maximum acceleration (g)	Alluvium stratum thickness (m)
1	−22.5	−9	0.36–0.38	39
2	−28.5	−30	0.4–0.42	45