Journal of the Eastern Asia Society for Transportation Studies
Online ISSN : 1881-1124
ISSN-L : 1341-8521
P: Practical Themes
Resilient Element Attached Under the Concrete Sleepers to Improve the Rail Track Performances
Sinniah Karuppiah NAVARATNARAJAH
著者情報
ジャーナル フリー

2019 年 13 巻 p. 2506-2520

詳細
抄録

Heavier concrete sleepers used in most of the ballasted tracks are subjected to greater stresses and faster deterioration of track structures. Resilient elements such as Under Sleeper Pads (USPs) installed at the bottom surfaces of concrete sleepers are promising techniques to increase the degree of vertical elasticity in the track structure and also with the intention of enhancing sleeper–ballast interaction to minimize dynamic stresses and subsequent track deterioration. In this study, cyclic loads from fast and heavy haul trains have been simulated using a large-scale Process Simulation Prismoidal Triaxial Apparatus (PSPTA) to investigate the performance of ballast behaviours improved by the USPs. The laboratory results indicate that the inclusion of USP at the bottom face of the concrete sleeper significantly reduces the stresses transmitted and minimizes the amount of plastic deformation and degradation of ballast.

著者関連情報
© 2019 Eastern Asia Society for Transportation Studies
前の記事 次の記事
feedback
Top