[HTML][HTML] Critical speed of ballasted railway tracks: Influence of ballast and subgrade degradation

RS Malisetty, B Indraratna - Transportation Geotechnics, 2024 - Elsevier
Track substructure layers such as ballast and subgrade involve progressive degradation
with time in relation to the loading history. Degradation of track components directly …

Effect of soil–cement stabilization of the subgrade on the response of a ballasted railway track

S Alzabeebee, SHA Alkhalidi, I Obaid… - Transportation …, 2024 - Springer
Soft subgrade presents considerable design issues for railway projects due to its high
compressibility and low shear wave velocity. Hence, it is necessary to increase the stiffness …

[HTML][HTML] Non-linear critical speed in high-speed ballasted railways with ground reinforcement

J Fernández-Ruiz, C Pereira - Transportation Geotechnics, 2024 - Elsevier
When constructing or upgrading high-speed railway lines on soft soils, reinforcing the soil
foundation becomes crucial. This not only involves small track displacements but also …

Numerical analysis of the influence of granular trench reinforcement of soft clay subgrade on the undrained dynamic response of a railway track

S Alzabeebee, A Adel, Z Radi… - International Journal of …, 2023 - World Scientific
Soft subgrade poses significant challenges to the designer of railway tracks due to its high
compressibility and low shear wave velocity. The low shear wave velocity might affect the …

Predicting the non-linear critical speed for high-speed railways in singular geotechnical scenarios

A Castanheira-Pinto, J Fernández-Ruiz… - Soil Dynamics and …, 2023 - Elsevier
Studying and predicting the non-linear critical speed in high-speed railway lines is very
costly in terms of computational efficiency. To overcome such particularity, the authors have …

Comparative study on dynamic responses of ballasted and ballastless tracks at critical velocity

Y Wu, H Fu, X Bian - Transportation Geotechnics, 2024 - Elsevier
High-speed railways are becoming ubiquitous worldwide, demanding increased operational
speeds. Yet, as trains near critical speeds, dynamic stress and embankment displacement …

[HTML][HTML] Dynamic amplification of rail tracks in high-speed lines: Exploring train effects and impact of ground treatment

NC dos Santos, A Colaço, P Soares… - Transportation …, 2024 - Elsevier
When the train circulation speed is much lower than the critical speed of the track-ground
system, problems with dynamic amplification effects are purely theoretical. However, the …

[PDF][PDF] Interference effect of three moving trains on the response of a ballasted railway track

S Alzabeebe, MA Hadi, BH Ismael… - Science and …, 2024 - researchgate.net
S. Alzabeebee et al. impacts settlement, causing a decrease for S= 1m compared to a single
railway track and a subsequent remarkable increase for larger S values. This conflicting …

Sustainable Application of Steel Slag as Sub-Ballast in Railway Tracks

RDF Alves, A Ramos, A Castanheira-Pinto… - Available at SSRN … - papers.ssrn.com
Towards the implementation of a circular economy, steel slags can be used as aggregates
for the construction industry. In particular, railway lines require a significant amount of …