Discrete element modelling of the effect of aspect ratio on compaction and shear behaviour of aggregates

R Lu, Q Luo, T Wang, DP Connolly, K Liu… - Computers and …, 2023 - Elsevier
Coarse aggregates are essential for constructing railways and highways, as they affect
structural performance through their compacted state and shear strength. Particle geometry …

[HTML][HTML] Permeation grouting of low-permeability silty sands with colloidal silica

G Liu, M Zhao, T Wang, DP Connolly, Y Cai… - Case Studies in …, 2023 - Elsevier
Permeation grouting is used to fill the voids in soils with particulates for the purpose of
improving soil strength. The technique has been predominatly used for cohesionless soils …

Study on the mitigation effect and mechanism of solar heating subgrade system on frost heave of railway subgrade in cold regions

W Zhang, D Wang, L Guo, Z Wen, Q Yu - Renewable Energy, 2024 - Elsevier
Frost heave represents a significant factor influencing the smoothness of railway track and
the long-term service performance of subgrade in cold regions. The solar heating subgrade …

Predicting frost heave in soil-water systems using the generalized regression neural network optimized with particle swarm optimization algorithm

H Cai, C Wang, Z Ma, F Meng, Z Lin, J Ren… - Cold Regions Science and …, 2024 - Elsevier
Frost heave poses a serious hazard to geotechnical engineering. However, conventional
experimental and theoretical methods, which have limitations in accurately describing the …

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 …

Assessing frost heave susceptibility of gravelly soils based on multivariate adaptive regression splines model

T Wang, H Ma, J Liu, Q Luo, Q Wang, Y Zhan - Cold Regions Science and …, 2021 - Elsevier
Frost heave of railway roadbed leads to track geometry degradation during the cold season,
seriously threatening the safety of high-speed trains. An accurate estimation of freezing …

Study on the frost heave mechanism of the water conveyance canal and optimized design of slope protection

H Liu, D Ma, C Wang, X Liu, D Wu… - Bulletin of Engineering …, 2021 - Springer
Canals play a vital role in water supply, irrigation, flood control, electricity generation, and
shipping. However, in seasonally frozen regions, canal slopes often suffer from damage as a …

Field investigation into the vibration characteristics at the embankment of ballastless tracks induced by high-speed trains in frozen regions

S Tian, L Tang, X Ling, Y Ye, S Li, Y Zhang… - Soil Dynamics and …, 2020 - Elsevier
Rapid growth and implementation of high-speed trains (HSTs) have made commuting
easier. However, the vibrations induced by HSTs deteriorate the embankment of ballastless …

Study on dynamic response and permanent deformation of the pier and its surrounding sites induced by high-speed train loads in seasonally frozen regions

H Zheng, W Yan - Construction and Building Materials, 2022 - Elsevier
Vibration induced by high-speed trains (HSTs) is well-known problem, which can deteriorate
the embankments, piers and other structures along the railways. Particularly, the problem is …

Crystallization deformation and phase transitions of coarse-grained sulfate saline soils upon cooling

L Wang, P Wang, J Liu, J Liu, W Chen, Q Zhang… - Cold Regions Science …, 2023 - Elsevier
The volumetric expansion of saline soils under cooling could pose a threat to infrastructure
constructed on these soils. This study examines the crystallization deformation …