Simultaneous Measurements of the Vehicle, Track, and Soil Vibrations at a Surface, Bridge, and Tunnel Railway Line

Figure 16

Vibrations of the soil and one-third octave band spectra for different train speeds □ 160, ○ 125, △ 100, + 80, and × 63 km/h, at distances (a) 2.5 m, (b) 5 m, (c) 17.5 m, (d) 30 m, (e) 100 m, surface line, and (f) 17.5 m tunnel line.

(a)

(b)

(c)

(d)

(e)

(f)