Analysis of Shaking Table Tests of Underground Structures considering the Influence of the Structure-Soil Interface

Table 4

Acceleration amplification factor of pipe sidewall.

Peak acceleration value (g)	Measuring point	Acceleration amplification factor (considering the effect of contact surface)	Acceleration amplification factor (without considering the effect of contact surface)
0.5	A5	1.88	1.67
	A4	1.52	1.32
	A3	1.21	1.09