A Solution of Subgrade Modulus for Response Displacement Method of Circular Underground Structures

Table 2

Properties of the ground layers.

	(1) artificial fill	(2) sand gravel	(3) clay	(4) gravelly soil	(5) gravel
Thickness h/m	10.3	7.6	5.4	31.6	15.1
Density ρ/kg/m^3	1810	2060	1860	1910	2150
Shear wave velocity Vs/m/s	158.0	219.3	215.2	240.6	302.6
Poisson’s ratio ν	0.31	0.33	0.37	0.32	0.33