Effects of Spatially Varying Seismic Ground Motions and Incident Angles on Behavior of Long Tunnels

Table 1

Properties of different soil layers.

Layer number	Young’s modulus (MPa)	Poisson’s ratio	Density (kg/m^3)	Cohesion (kPa)	Internal friction angle (°)	Thickness (m)
1	3.029	0.45	1760	10.8	14.2	20.6
2	6.135	0.36	1810	17.7	18.9	23.9
3	6.319	0.47	1870	22	22.9	24.2
4	6.251	0.36	1950	24.9	18.2	31.5