Stability Analysis of Steel Lining at Pressure Diversion Tunnel Collapse Zone during Operating Period

Table 1

Mechanical parameters of the materials.

Materials	Deformation modulus/GPa	Poisson’s ratio	Cohesion/MPa	Friction angle/(°)	Tensile strength/MPa	Permeability coefficient/ m·s^−1
Rock mass	8.0	0.27	0.55	37.0	1.4
Grouted rock mass	10.0	0.26	0.80	40.0	1.6
Collapse body	3.0	0.32	0.27	33.0	0.6
Consolidation layer	5.0	0.29	0.45	35.5	1.0
Antiseepage curtain	10.0	0.26	0.80	40.0	1.6
Concrete	28.0	0.18	2.15	50.0	1.2