Unified Analytical Solutions of Circular Tunnel Excavated in an Elastic-Brittle-Plastic Rock Mass considering Blast-Induced Damage and Dead Weight Loading

Table 1

The geometry and rock parameters by Pan et al. [30].

Geometry and rock parameters	Value
In situ stress, (MPa)	30
Tunnel radius, (m)	10
Rock gravity, (kN/m^3)	0
Internal pressure, (MPa)	0
Dilatancy angle, (°)	30
Initial elastic modulus, (GPa)	2
Initial cohesive, (MPa)	6
Initial friction angle, (°)	30
Initial Poisson’s ratio ()	0.3
Damage elastic modulus, (GPa)	2
Damage cohesive, (MPa)	6
Damage friction angle, (°)	30
Damage Poisson’s ratio ()	0.3