Research Article
Experimental Analysis on Dynamic Response of X-Section Piled Raft Composite Foundation under Cyclic Axial Load for Ballastless Track in Soft Soil
Figure 10
Frequency spectrum curves of vibration velocity at embankment, cushion, subsoil for three cyclic loading frequencies. (a) f = 5 Hz. (b) f = 10 Hz. (c) f = 20 Hz.
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