Settlement and Bearing Capacity of Roadbed Subjected to Tilting-train Loading in Various Ground Conditions
Sang-Soo Jeon
International Journal of Railway, vol. 8, no. 2, pp.35-41, 2015
Abstract : Tilting-train is very attractive to the railroad users in the world due to the advantage of high speed in curved track
using pre-existing infrastructure of railway. Tilting-train has a unique allowable speed and mechanism especially in
curved track. In this work, when tilting-train is operated with the allowable speed, the behavior of roadbed is evaluated
by examining its settlement and bearing capacity. Additionally, the stability of roadbed is estimated as the roadbed
is in the condition of soft soil influenced by the weather effects and cyclic train loading. Numerical results show
that the roadbed settlement satisfies the allowable settlement when the elastic modulus of upper roadbed should be
greater than 5000 t/m2
.
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