Research Article
Experimental Study on the Dynamic Characteristics of a New Long-Short Pile Composite Foundation under Long-Term Train Load
Table 1
Similarity relation and similarity constant.
| | Physical quantity | Similarity relationship | Similarity ratio | Note |
| | Geometric characteristics | Length l | C l | 10 : 1 | Controlled quantity | | Area A | C A = Cl2 | 100 : 1 | | | Displacement u | C u = Cl | 10 : 1 | |
| | Material characteristics | Strain ε | C Ɛ = 1.0 | 1 : 1 | | | Stress σ | C σ = CE | 1 : 1 | | | Elastic modulus E | C E | 1 : 1 | Controlled quantity | | Poisson’s ratio | | 1 : 1 | | | Density ρ | C ρ | 1 : 1 | Controlled quantity | | Cohesion c | C c = CE | 1 : 1 | | | Internal friction angle φ | C φ = 1.0 | 1 : 1 | |
| | Load | Concentrated force F | C F = Cl2CE | 100 : 1 | | | Surface load q | C q = CE | 1 : 1 | |
| | Dynamic characteristics | Quality m | C m = Cl3Cρ | 1000 : 1 | | | Time t | C t = ClCρ0.5CE−0.5 | 10 : 1 | | | Frequency | Ct−1 | 0.1 : 1 | | | = ClCt−1 | 1 : 1 | | | Acceleration a | C a = ClCt−2 | 0.1 : 1 | |
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