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 8

Frequency spectrum curves of vibration velocity at track slab, roadbed, embankment. (a) f = 5 Hz. (b) f = 10 Hz. (c) f = 20 Hz.
(a)
(b)
(c)