The Characteristics of Seismic Response on Hard Interlayer Sites

Table 1

Information regarding soil strata collected from drilling results.

No.	Depth (m)	Soil property	Thickness (m)	Density (t/m^3)	Category number
1	3.9	Silty clay	3.9	1.81	1
2	13.4	Silty sand	9.5	1.93	2
3	17	Silty clay	3.6	1.93	3
4	21	Silty clay	4	1.89	4
5	25.2	Silty clay	4.2	1.89	5
6	32	Silty clay	6.8	1.89	4
7	38	Silty clay	6	2.04	6
8	42.7	Silty clay	4.7	1.96	7
9	44.3	Silty sand	1.6	1.92	8
10	92.9	Basalt	48.6	2.51	18
11	198	Volcanic breccia	105.1	2.51	18
12	204	Silty clay	6	2.06	9
13	216	Silty clay	12	2.02	10
14	279	Silty clay	63	2.07	11
15	309.8	Silty clay	30.8	2.05	12
16	311.1	Silt sand	1.3	2.06	13
17	337.5	Silty clay	26.4	2.06	14
18	—	Silty clay	—	2.55	19