Development of Transversely Isotropic Elastoplastic Constitutive Model in FLAC^3D and Its Application in Tunnel Engineering

Table 4

Calculation parameters of the AN-MC constitutive model.

	Parameter	Value
Level occurrence	Dip direction angle dd (°)	90
	Dip angle dip (°)	0
Elastic parameters	The elastic modulus of the plane parallel to the bedding plane (Pa)
	The Poisson ratio of the plane parallel to the bedding plane	0.3
	The elastic modulus of in the plane perpendicular to the bedding plane (Pa)
	The Poisson ratio of in the plane perpendicular to the bedding plane	0.18
	The shear modulus of in the plane perpendicular to the bedding plane (Pa)
Plastic parameters	The cohesion (Pa)
	The friction angle (°)	27
	The tensile strength (Pa)