Vertical Seismic Effect on the Seismic Fragility of Large-Space Underground Structures

Table 4

Soil physical properties for site III.

Soil layer	Thickness (m)	Soil type	Unit weight (kg·m^−3)	Shear wave velocity (m·s^−1)	Poisson ratio	Cohesion (kPa)	Friction angle (°)
1	2.00	Clay	1940	173	0.33	10.0	25.0
2	3.00	Silty clay	1980	200	0.32	13.4	12.0
3	13.30	Silty clay	1990	212	0.32	10.0	23.8
4	7.10	Silty clay	2000	244	0.40	13.4	12.0
5	19.60	Sandy clay	2000	273	0.30	10.0	25.0
6	15.00	Silty clay	2050	333	0.26	10.0	25.0