Results 1 to 10 of about 687,643 (290)

Train-Induced Vibration Monitoring of Track Slab under Long-Term Temperature Load Using Fiber-Optic Accelerometers [PDF]

Sensors, 2021
The train-induced vibration response provides a flexible solution for the real-time monitoring deformation of high-speed railway track slab in actual operation.
Jianxiang Zhang, Wenzhu Huang, Wentao Zhang, Fang Li, Yanliang Du   +4 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]

Scientific 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, Xuehui Jiang, Ruping Luo, Hongyan Li, Shuai He, Yu Hou   +5 more
doaj   +2 more sources

Influences of cement asphalt emulsified mortar construction on track slab geometry status [PDF]

Railway Sciences, 2023
Purpose – The construction of cement asphalt (CA) emulsified mortar can obviously disturb the slab status after the fine adjustment. To decrease or eliminate the influence of CA mortar grouting on track slab geometry status, the effects of grouting ...
Tao Wang, Shaoliang Wu, Hengqiong Jia, Zhao Wei, Haiyan Li, Piyan Shao, Shanqing Peng, Yi Shi   +7 more
doaj   +1 more source

Random-Forest Machine Learning Approach for High-Speed Railway Track Slab Deformation Identification Using Track-Side Vibration Monitoring

Applied Sciences, 2021
High-speed railways (HSRs) are established all over the world owing to their advantages of high speed, ride comfort, and low vibration and noise. A ballastless track slab is a crucial part of the HSR, and its working condition directly affects the safe ...
Gaoran Guo, Xuhao Cui, Bowen Du
doaj   +1 more source

Influence of temperature gradient of slab track on the dynamic responses of the train-CRTS III slab track on subgrade nonlinear coupled system

Scientific Reports, 2022
Temperature is an important load for ballastless track. However, there is little research on the system dynamic responses when a train travels on a ballastless track under the temperature gradient of ballastless track.
Qingyuan Xu, Shengwei Sun, Yi Xu, Changlin Hu, Wei Chen, Lei Xu   +5 more
doaj   +1 more source

Comparative Research on Vibration Characteristics of Cast-In-Place Steel-Spring-Floating Slab Track under Different Subway Line Conditions

Applied Sciences, 2022
Purpose: Steel-spring-floating slab tracks are widely used in subway lines. It is necessary to analyze and study the vibration damping and transmission characteristics of the steel-spring-floating slab track in various frequency bands under the action of
Xudong Huang, Zhiping Zeng, Zhuang Li, Weidong Wang, Yu Yuan, Weidong Yuan, Houdou Saidi Boumedienne   +6 more
doaj   +1 more source

Simulation Study on Vertical Deformation of CRTS III Slab Track under Ambient Temperature and Its Upgrade to “Green Maintenance”

Applied Sciences, 2021
In view of the vertical deformation of CRTS III slab ballastless track of high-speed railways under the action of ambient temperature, a simulation model of the temperature field and vertical deformation of CRTS III slab ballastless track was developed ...
Junzhao Zhou, Yanyun Luo, Guosheng Lv, Yongliang Xiong   +3 more
doaj   +1 more source

Thermal arching and interfacial damage evolution of CRTS-II slab track under solar radiation in alpine and plateau regions

Alexandria Engineering Journal, 2023
Arch deformation and interface failure of CRTS-II slab track have become crucial issues for the operation safety of high-speed railways. However, few researchers investigated the mechanics and deformation behaviour on CRTS-II slab track exposed to high ...
Ping Lou, Tao Shi
doaj   +1 more source

Vertical Dynamic Analysis of Ballastless Tracks on Train-Track- Bridge System [PDF]

MATEC Web of Conferences, 2020
In order to investigate the vertical dynamic response characteristics of train-track-bridge system on CWR (Continunously Welded Rail) under dynamic load of train on HSR (High-Speed Railway) bridge.
Xie Haoran, Yan Bin, Huang Jie
doaj   +1 more source

Experimental study on mechanical properties of heavy-haul low-vibration track under train static load

Science Progress, 2020
In this paper, a full-scale model of Low Vibration Track was established and three working conditions were applied to a single bearing block; these include: vertical load at the end of the track slab, combination of horizontal and vertical load at the ...
Wuji Guo, Zhiping Zeng, Shiye Li, Weidong Wang, Abdulmumin Ahmed Shuaibu, Zhuo Chen   +5 more
doaj   +1 more source