Research Article

Analysis of the Mechanical Characteristics of Different Track Bed Types in Heavy-Haul Railway Tunnels

Table 4

Dynamic load on the track bed surface of the ballastless slab track under different surrounding rock conditions (kPa).

LocationClass IIIGrowth rateClass IVGrowth rateClass VTheoretical value

Track bedLine centre98.8506.22105.0002.29107.400110.360
SurfaceTrack126.7003.08130.6000.46131.200139.696