Analysis on the Influence of Increasing Seismic Fortification Intensity on Seismic Performance of Underground Station

Table 1

Soil material parameters.

Soil layer number	Soil	Layer thickness (m)	Density (kg·m^3)	Wave speed (m·s^−1)	Poisson’s ratio
1	Plain fill	1.50	1916.2	107.0	0.429
2	Silty clay	3.50	1953.7	138.0	0.429
3	Clay	5.85	1909.6	126.5	0.410
4	Silty clay	3.45	1966.3	165.0	0.429
5	Clay	1.40	2019.5	206.0	0.418
6	Silty clay	4.25	2033.9	240.0	0.425
7	Silty clay	2.35	2020.6	266.0	0.417
8	Clay	4.65	2053.1	257.3	0.412
9	Clay	1.50	2060.4	250.0	0.339
10	Clay	2.75	2045.3	267.5	0.402
11	Silty clay	8.10	2005.8	243.0	0.411
12	Clay	2.85	2056.3	367.0	0.412
13	Silty clay	2.50	2018.5	250.0	0.428
14	Clay	10.45	2001.6	376.5	0.422
15	Clay	10.30	2045.3	312.0	0.412
16	Clay	7.00	2091.2	318.0	0.412
17	Silty clay	7.50	2074.1	334.0	0.412
18	Clay	4.00	2065.3	329.0	0.422
19	Silty clay	4.50	2077.4	339.0	0.432
20	Silty clay	4.00	1957.2	450.0	0.422