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 quantitySimilar relationshipSimilarity ratio

Length/l1/25
Modulus of elasticity/E1/125
Unit weight/γ11
Strain/ε11/
Stress/σ1/125
Effective overpressure/F1/25
Time/t1/12.5
Frequency/12.5
Acceleration/a2.3