Frequency spectra analysis of vertical stress in ballasted track foundations: influence of train configuration and subgrade depth

G Feng, Q Luo, T Wang, DP Connolly, K Liu - Transportation Geotechnics, 2024 - Elsevier
Railway tracks experience stress during train passage. Understanding these subgrade
stresses is essential for the design of track foundations and assessing their serviceability …

Modeling of the dynamic rail deflection using elastic wave propagation

D Kurhan, S Fischer - Journal of Applied and Computational …, 2022 - jacm.scu.ac.ir
There is a class of tasks that requires considering the dynamics not only for rolling stock but
also for the response of the railway track. One of the directions of railway transport …

Prediction method for the dynamic response of expressway lateritic soil subgrades on the basis of Bayesian optimization CatBoost

X Huang, W Liu, Q Guo, J Tan - Soil Dynamics and Earthquake …, 2024 - Elsevier
Due to the limited features and poor accuracy of current methods for predicting the dynamic
response of subgrades, this paper proposes an innovative approach that combines …

Impact of initial gradation on compaction characteristics and particle crushing behavior of gravel under dynamic loading

M Meng, S Deng, H Cui, Z Yuan, X He - Powder Technology, 2024 - Elsevier
Gravel is a widely used construction material due to its versatility and cost-effectiveness.
However, gravel particles are prone to crushing under dynamic loading, causing changes in …

Dynamic stress response in a novel prestressed subgrade under heavy-haul train loading: A numerical analysis

Q Zhang, J Dong, W Leng, C Zhang, C Wen… - … and Building Materials, 2024 - Elsevier
To explore the dynamic transient characteristics induced by passing heavy-haul trains in
newly-developed prestressed subgrade, two three-dimensional finite element models were …

Numerical investigation into hydrodynamic behavior of graded aggregates of high-speed ballastless track considering the degree of saturation

Y Pei, Q Su, K Liu, B Liu, T Wang, C Zhao - Transportation Geotechnics, 2023 - Elsevier
The ballastless track inevitably suffers from some functional defects, such as expansion joint
cracking, due to the long term combined effect of dynamic train loads and environmental …

The effect of asphaltic support layers on slab track dynamics

Q Ye, Q Luo, DP Connolly, T Wang, H Xie… - Soil Dynamics and …, 2023 - Elsevier
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 …

Development of an in-situ shaker for evaluating railway earthworks

P Lyu, Q Luo, G Feng, DP Connolly, K Liu… - Soil Dynamics and …, 2024 - Elsevier
The geotechnical and geodynamic characteristics of railway earthworks under train loading
are important quantities for railway and geotechnical engineers, but difficult to quantify …

Development of a new modified TSRST test to measure the thermal stress of asphalt supporting layer in the slab track system

S Liu, C Shi, T Wang, J Yang, X Chen - Measurement, 2023 - Elsevier
The unique thermal stress environment of asphalt supporting layer (ASL) in the slab track
system is critical to its service safety. The extra thermal load is responsible for causing large …

An experimental analysis of dynamic deformation and settlement resistance in a novel prestressed railway subgrade

Q Zhang, F Xu, J Dong, W Leng, Y Li - International Journal of Rail …, 2024 - Taylor & Francis
The dynamic deformation characteristics of track-subgrade systems under moving train
loads provide valuable insights for vibration and serviceability assessment of the track …