Results 1 to 10 of about 7,814 (157)

Differential Settlement of Track Foundations Identification Based on GRU Neural Network

open access: yesRemote Sensing, 2023
The timely identification of differential settlement of track foundations is of great significance for the safety of train operation and the maintenance of track structures.
Jiqing Jiang   +3 more
doaj   +4 more sources

Experimental analysis of railway track settlement in transition zones. [PDF]

open access: yesProc Inst Mech Eng F J Rail Rapid Transit, 2018
Transition zones in railway tracks are the locations with considerable changes in the vertical support structures. Due to the differential stiffness and settlement in the open track and the engineering structure resulting in the dynamic amplification of the wheel forces, track settlement is usually observed in the approaching zones.
Wang H, Markine V, Liu X.
europepmc   +6 more sources

Modelling railway ballasted track settlement in vehicle-track interaction analysis [PDF]

open access: yesTransportation Geotechnics, 2021
Abstract The geometry of a ballasted railway gradually deteriorates with trafficking, mainly as a result of the plastic settlement of the track-bed (ballast and sub-base). The rate and amount of settlement depend on a number of factors, and for various reasons are difficult to predict or estimate analytically. As a result, various empirical equations
Ilaria Grossoni   +2 more
exaly   +3 more sources

Effects of Differential Subgrade Settlement on Slab Track Deformation Based on a DEM-FDM Coupled Approach

open access: yesApplied Sciences, 2021
Slab track structures become deformed under the effects of differential subgrade settlement. According to the properties of the China Railway Track System (CRTS) II slab track on a subgrade, a three-dimensional (3D) coupled model based on both the ...
Xuhao Cui   +4 more
doaj   +3 more sources

Railway track settlement patterns and control measures for multi-tunnel construction underneath a station track group: a case study [PDF]

open access: yesScientific Reports
This paper is based on the proximity engineering project of the Baishiyi tunnel group passing under the Chongqing West Station track group. Considering the train load and the spatial relationship of the tunnel and track groups, the settlement patterns ...
Pinpin Li   +3 more
doaj   +2 more sources

Study on influence of cosine-shaped subgrade settlement at different positions on the deformation and interlayer contact behavior of unit slab ballastless track [PDF]

open access: yesScientific Reports
The influence of cosine-shaped subgrade settlement (CSSS) at different positions on the structure of unit slab ballastless track (USBT) of high-speed railway (HSR) is studied in this paper.
Jing Tan   +5 more
doaj   +2 more sources

Analytical forecasting of long-term railway track settlement [PDF]

open access: yesComputers and Geotechnics, 2022
Railway tracks undergo plastic settlement when subject to repeated train loading. This occurs differentially along the track rather than in a uniform manner, and the profile is a key parameter when scheduling track maintenance operations. Therefore this paper presents a novel numerical approach to predict track irregularity evolution.
C Charoenwong   +2 more
exaly   +3 more sources

Numerical Analysis of Additional Stresses in Railway Track Elements Due to Subgrade Settlement Using FEM Simulation

open access: yesApplied Sciences, 2021
The prediction of additional stresses in ballasted track due to subgrade deformation is the main objective of the present paper. In this context, a 2D finite element model of ballasted railway track was built using the ANSYS Workbench program.
Ahmed Nabil Ramadan   +3 more
doaj   +3 more sources

Intelligent identification of ballastless track subgrade settlement based on vehicle-rail vibration data [PDF]

open access: yesScientific Reports
Monitoring uneven subgrade settlement in ballastless track systems remains challenging due to the limited accuracy and discontinuous nature of conventional detection methods.
Chong Li, Yu Guo
doaj   +2 more sources

Effects of Pipe Roof Support and Grouting Pre-Reinforcement on the Track Settlement

open access: yesAdvances in Civil Engineering, 2018
Based on the first shallow tunnel passing below an active railway station in the loess area in China, studies on the tunnel deformation and track settlement during tunneling are performed by using FLAC3D.
Kui Wu, Zhushan Shao
doaj   +2 more sources

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