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

Table 3

Ground motion amplification ratios for the five single interbedded models under four seismic inputs.

	Bedrock input	Model 1-1	Model 1-2	Model 1-3	Model 1-4	Model 1-5
PGA (gal)	1 (60)	1.35 (81.00)	1.25 (75.00)	1.42 (85.20)	1.37 (82.40)	1.37 (82.40)
	1 (202)	1.32 (266.6)	1.26 (254.6)	1.30 (262.4)	1.27 (256.8)	1.29 (261.3)
	1 (395)	1.69 (699.4)	1.31 (516.8)	1.39 (547.4)	1.39 (548.4)	1.66 (654.0)
	1 (680)	1.47 (998.0)	1.03 (698.2)	1.16 (786.0)	1.13 (770.4)	1.42 (963.8)
PGV (cm/s)	1 (4)	1.18 (4.70)	1.05 (4.20)	1.20 (4.80)	1.20 (4.80)	1.10 (4.40)
	1 (19)	1.02 (19.4)	1.01 (19.2)	1.06 (20.2)	1.02 (19.4)	1.04 (19.7)
	1 (35)	1.69 (59.2)	1.58 (55.4)	1.54 (53.8)	1.58 (55.2)	1.55 (54.1)
	1 (65)	1.94 (126.0)	1.90 (123.4)	1.86 (121.0)	2.00 (130.1)	1.98 (128.7)
PGD (cm)	1 (2)	1.00 (2.0)	1.00 (2.0)	1.00 (2.0)	1.00 (2.0)	1.00 (2.0)
	1 (5)	1.24 (6.2)	1.24 (6.2)	1.28 (6.4)	1.16 (5.8)	1.22 (6.1)
	1 (14)	1.23 (17.2)	1.27 (17.8)	1.30 (18.2)	1.29 (18.1)	1.24 (17.3)
	1 (24)	1.50 (36.0)	1.58 (36.0)	1.49 (35.8)	1.45 (34.9)	1.48 (35.6)

Note. The values in the parentheses show the amplitudes of the PGA, PGV, and PGD.