Train Moving Load-Induced Vertical Superimposed Stress at Ballasted Railway Tracks

Table 3

Database of railway geometric parameters in South Africa.

Site

Year (y)

Axle load (t)

Track type (kg/m)

Type of ties

L (m)

B (m)

Ballast type

Dmax (m)

hB (m)

φB (°)

hn (m)

φn (°)

Reference

COAL Link Line^1

2004

60

Concrete

1.1

0.27

Gravel

0.3

54^2

0.2

30^3

Yang et al. [47]

0.2

25^3

0.2

20^3

0.2

15^3

¹Track gauge = 1.065 m; tie spacing = 0.65 m. ²Estimated by equation (6). ³Estimated from Figures 5 and 8 in Yang et al. [47].