Seismic Acceleration Spectrum of Ground Surface under Urban Subway Tunnels with Circular Cross Sections in Soil Deposits Based on SSI

Table 2

The models studied in the present research.

No.	Elasticity module of soil (compared to Delhi Metro)	Overburden depth (m)	Lining thickness (m)	Tunnel radius (m)
1	1	20	0.5	3.13
2	1	20	0.28	3.13
3	1	10	0.5	6
4	1	10	0.75	6
5	1	20	0.75	6
6	1.25	10	0.28	3.13
7	1.25	20	0.28	3.13
8	1.25	10	0.5	6
9	1.25	20	0.5	6
10	1.5	20	0.5	3.13
11	1.5	20	0.28	3.13
12	1.5	10	0.75	6
13	1.5	10	0.5	6
14	1.5	20	0.5	6
15	1.5	20	0.75	6
16	1.75	10	0.28	3.13
17	1.75	20	0.28	3.13
18	1.75	10	0.5	6
19	1.75	20	0.5	6
20	2	20	0.5	3.13
21	2	20	0.28	3.13
22	2	10	0.75	6
23	2	10	0.5	6
24	2	20	0.5	6
25	2	20	0.75	6
26	2.25	10	0.28	3.13
27	2.25	20	0.28	3.13
28	2.25	10	0.5	6
29	2.25	20	0.5	6
30	2.5	20	0.5	3.13
31	2.5	20	0.28	3.13
32	2.5	20	0.5	6
33	2.5	10	0.5	6
34	2.5	10	0.28	3.13
35	1	20	0.5	6
36	1	10	0.28	3.13