Research Article
Nonlinear Seismic Response of a Hydraulic Tunnel Considering Fluid-Solid Coupling
Table 1
Geomechanical properties of the rock units and concrete used in the numerical solutions.
| | Rock/Concrete | Density
(kg/m3) | Deformation
modulus(GPa) | Poisson’s
ratio | Friction angle (°) | Cohesion
(MPa) | Tensile strength (MPa) |
| | Rock | 2.7 | 10 | 0.27 | 42 | 0.8 | 1.2 | | Primary lining | 2.5 | 27.5 | 0.167 | 40 | 1.5 | 1.25 | | Secondary lining | 2.5 | 27.5 | 0.167 | 35 | 1.5 | 1.25 | | Fluid | 1.0 | 2.1 | - | - | - | - |
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