Table 1 Test parameters.

From: An new elastic–plastic analytical solution of circular tunnel under non-axisymmetric conditions

Materials

Volume weight (kN/m3)

Deformation modulus (GPa)

Poisson's ratio

Bulk modulus (GPa)

Shear modulus (GPa)

Cohesion (MPa)

Friction angle (°)

Rock mass

25

6.0

0.3

5.0

2.3

0.7

39