Stability Analysis of Water-Resistant Strata in Karst Tunnel Based on Releasable Elastic Strain Energy

Table 1

Mechanical parameters of rock mass.

Internal friction angle/(°)	Cohesion/MPa	Deformation modulus/GPa	Compression strength/MPa	Tensile strength/MPa	Bulk modulus/GPa	Shear modulus/GPa	Poisson’s ratio
41.07	6.958	15.981	30.585	0.230	11.098	6.342	0.26