Characterization of Vertical Response of Asphalt Trackbed Concrete in Railway Substructure to External Loads

Figure 6

The simulated and measured acceleration (a, d, and g), the PSD content (b, e, and h), and corresponding coherence (c, f, and i) on the slab layer, on the base layer, and on the roadbed layer, respectively.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)