Effect of ballast retaining walls on the lateral resistance of railway tracks

P. Aela, W. L. Jia, G. Q. Jing

Research output: Contribution to journalArticleScientificpeer-review

Abstract

In this study, the application of a retaining wall was proposed as a solution for reducing the lateral displacement of the ballast layer, particularly in sharp curves and bridges. In this regard, a series of single tie push tests were performed on panels with shoulder ballast widths of 300 mm, 400 mm, 500 mm with and without the presence of L-shaped and T-shaped retaining walls. Overall, it was proven that the application of an L-shaped wall led to a 15.8% increase in the lateral resistance, and that T-shaped walls have a higher impact on the stability of the track. A shoulder width of 400 mm was proposed as the optimum width for ballasted tracks with retaining walls.

Keywords

  • lateral resistance
  • overturning
  • Retaining wall
  • shoulder ballast width
  • single tie push tests

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