Dynamic Response of the Entrance Structure of an Elliptical Mountain Tunnel under the Action of SH Waves

Table 1

Mechanical parameters of lining and rock materials.

		Bulk density, γ (kN/m^3)	Elastic modulus, E (GPa)	Poisson's ratio
Wall rock	Soft rock	17.09	0.65	0.22
	Hard rock	22.3	31.5 (23.4 MPa)	0.23
Tunnel lining	25	29.8	0.23