Analytical Solution for Circular Tunnel under Obliquely Incident P Waves considering Different Contact Conditions

Table 3

Physical parameters of the ground and corresponding flexibility ratio.

Density, ρ (kg/m^3)	Poisson’s ratio, ν	Young’s modulus, (MPa)	Flexibility ratio, F
2500	0.25	1.953	0.1
2500	0.25	7.813	0.4
2500	0.25	19.531	1
2500	0.25	48.828	2.5
2500	0.25	117.188	6
2500	0.25	195.313	10
2500	0.25	585.937	30
2500	0.25	1367.188	70
2500	0.25	1953.125	100
2500	0.25	3906.250	200
2500	0.25	9765.625	500
2500	0.25	19531.25	1000