Research Article
Study on Seismic Response Characteristics of Shield Tunnel in Soil-Rock Combination Stratum
Table 3
Similarity relationship and similarity ratio of each physical quantity of the model.
| Physical quantity | Similar relationship | Similarity ratio |
| Length/l | | 1/25 | Modulus of elasticity/E | | 1/125 | Unit weight/γ | 1 | 1 | Strain/ε | 1 | 1/ | Stress/σ | | 1/125 | Effective overpressure/F | | 1/25 | Time/t | | 1/12.5 | Frequency/ | | 12.5 | Acceleration/a | | 2.3 |
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