Vibration and Long-Term Performance Analysis of Pile-Plank-Supported Low Subgrade of Ballastless Track under Excitation Loads

Figure 14

Vibration response of the low subgrade versus vibration times: vertical acceleration (a), vertical velocity (b), dynamic displacement (c), and dynamic soil pressure (d) of the low subgrade versus vibration times.

(a)

(b)

(c)

(d)