Traditional ballasted tracks have been used intensively around the world with ballast as the
main material for tracks. Ballast has a significant contribution to the track alignment, stability …

The geomechanical behaviour of railway ballast is a key aspect in the performance of
ballasted tracks, mainly under increased axle loads and/or train speeds. Recently, and …

The three-dimensional stress state of subgrade soil elements plays a crucial role in railway
subgrade design and service life evaluation, especially in heavy-haul railways. To solve the …

This work describes a series of novel experimental tests to determine the potential of
geogrids to confine granular layers within ballasted railway lines operating at speeds close …

In this paper, an improved nonlinear model of railway ballast is proposed based on the
modified Ludwik model. The accuracy of model-based structural damage detection relies on …

Railway tracks experience elevated rail deflections when the supporting soil is soft and/or
the train speed is greater than approximately 50% of the wave propagation velocity in the …

This paper gives new insights into non-linear subgrade behaviour on high speed railway
track dynamics. First, a novel semi-analytical model is developed which allows for soil …

As a core infrastructure of high-speed railways, ballast layers constituted by graded crushed
stones feature noteworthy particle movement compared with normal railways, which may …

The deployment of asphaltic support layers (ASLs) within railway track structures has the
potential to increase track bending stiffness, assist moisture runoff and provide a platform for …

Abstract A three-dimensional (3D) finite element (FE) analysis is developed to study the
effect of moving wheel load on the dynamic response of track with the key objective of …