Dynamic Responses of a Twin-Tunnel Subjected to Moving Loads in a Saturated Half-Space

Table 1

Parameters of the edge pressure and the saturated poroelastic medium.

Parameter	Symbol	Value
Young’s modulus		5.33 × 10^7 Pa
Poisson’s ratio		0.33
Density of the bulk material		2000 kg/m^3
Density of the pore fluid		1000 kg/m^3
Porosity		0.4
Biot parameters		0.98
Biot parameters		4.0 × 10^8 Pa
Additional mass density		0 kg/m^3
Darcy permeability coefficient		4.91 × 10^−3 m/s
Triangular pulse load		2.00 × 10^7 Pa
Radius of tunnel		1.0 m