Shaking-Table Tests for Immersed Tunnels at Different Sites

Table 1

Similitude relations and ratios of the model system.

Item	Symbol	Similitude relation	Ratio
			Tunnel	Soil
Geometry			1/30	1/4
Elasticity modulus			1/4	1/4
Mass density			5	1
Displacement			1/30	1/4
Acceleration			1.5	1
Time			0.149	1/2
Frequency			6.711	2
Pore water pressure			/	1/4
Shear wave velocity			/	1/2
Stress			1/4	1/4