Study on the Seismic Effect of the Interbedded Soil Layer in the Yinchuan Alluvial Plain

Table 1

Models and soil mechanical parameters.

Model	Soil name	Layer depth (m)	Soil thickness (m)			Soil type number
Model 1-1	Silty clay	10	10	265	1.95	1
	Fine sand	20	10	293	1.92	6
	Fine sand	30	10	359	1.92	6
	Fine sand	40	10	426	1.92	6
	Fine sand	50	10	500	1.92	6
Model 1-2	Fine sand	10	10	226	1.90	6
	Silty clay	20	10	337	1.97	2
	Fine sand	30	10	369	1.92	6
	Fine sand	40	10	433	1.92	6
	Fine sand	50	10	500	1.92	6
Model 1-3	Fine sand	10	10	276	1.90	6
	Fine sand	20	10	287	1.91	6
	Silty clay	30	10	372	2.00	3
	Fine sand	40	10	433	1.92	6
	Fine sand	50	10	500	1.92	6
Model 1-4	Fine sand	10	10	236	1.90	6
	Fine sand	20	10	311	1.87	6
	Fine sand	30	10	388	1.92	6
	Silty clay	40	10	441	2.05	4
	Fine sand	50	10	500	1.92	6
Model 1-5	Fine sand	10	10	222	1.90	6
	Fine sand	20	10	307	1.91	6
	Fine sand	30	10	389	1.92	6
	Fine sand	40	10	453	1.96	6
	Silty clay	50	10	500	2.1	5
Model 2-1	Fine sand	7	7	207	1.89	6
	Fine sand	14	7	271	1.90	6
	Fine sand	21	7	329	1.91	6
	Fine sand	28	7	373	1.92	6
	Fine sand	35	7	419	1.93	6
	Fine sand	42	7	463	1.94	6
	Silty clay	50	8	500	2.1	5
Model 2-2	Fine sand	7	7	200	1.89	6
	Fine sand	14	7	281	1.90	6
	Fine sand	21	7	323	1.91	6
	Silty clay	28	8	399	1.96	3
	Fine sand	35	7	408	1.93	6
	Fine sand	42	7	443	1.94	6
	Fine sand	50	7	500	1.96	6
Model 2-3	Fine sand	7	7	218	1.89	6
	Fine sand	14	7	279	1.90	6
	Fine sand	21	7	319	1.91	6
	Silty clay	28	7	388	1.96	3
	Fine sand	35	7	412	1.93	6
	Fine sand	42	7	451	1.94	6
	Silty clay	50	8	500	2.1	5
Model 2-4	Silty clay	7	7	269	1.92	1
	Fine sand	14	7	279	1.90	6
	Fine sand	21	7	322	1.91	6
	Silty clay	28	7	393	1.96	3
	Fine sand	35	7	410	1.93	6
	Fine sand	42	7	448	1.94	6
	Silty clay	50	8	500	2.1	5
Model 2-5	Silty clay	7	7	269	1.92	1
	Fine sand	14	7	272	1.90	6
	Silty clay	21	7	372	1.96	3
	Fine sand	28	7	390	1.96	3
	Silty clay	35	7	431	2.0	4
	Fine sand	42	7	448	1.94	6
	Fine sand	50	8	500	1.96	6
Model 2-6	Silty clay	7	7	269	1.92	1
	Fine sand	14	7	272	1.90	6
	Silty clay	21	7	372	1.96	3
	Fine sand	28	7	390	1.96	3
	Silty clay	35	7	431	2.0	4
	Fine sand	42	7	448	1.94	6
	Silty clay	50	8	500	2.10	5