Research Article
Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed Tunnel
Table 2
Similitude relation of the immersed tunnel model and soil model.
| | Type | Physical quantity | Dimension | Similitude relation | Similitude parameter of tunnel | Similitude parameter of soil |
| | Structural geometry | Geometry, l | (L) | SL | Set as 1/60 | Set as 1/60 | | Displacement, Δ | (L) | | 1/60 | 1/60 | | Rotation,β | - | | Set as 1 | Set as 1 | | Material properties | Elastic modulus, E | (FL−2) | | Set as 1/4 | Set as 1/12.4 | | Equivalent mass density ρe | [FL−4 T2] | | Set as 2 | Set as 0.7 | | Poisson’s ratio, µ | - | | 1 | 1 | | Strain, ε | - | | 1 | 1 | | Stress, σ | (FL−2) | | 1 | 1 | | Loads | Point load, F | (F) | | 6.94e-5 | 2.46e-5 | | Moment, M | (FL) | | 1.157e-6 | 4.074e-6 | | Dynamic indicators | Time, t | (T) | | 0.047 | 0.047 | | Frequency, ω | (T−1) | | 21.28 | 21.28 | | Damping ratio, ξ | - | | Set as 1 | Set as 1 | | Acceleration, a | (LT−2) | | 7.5 | 7.59 |
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