Results 11 to 20 of about 5,944 (240)

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

open access: yesAlexandria 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

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

open access: yesApplied 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   +3 more
doaj   +1 more source

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

open access: yesMATEC 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

Modelling of slab track systems for design purposes

open access: yesJournal of Engineering and Applied Science, 2023
Slab track is a recent technology used to cope up with the train high axle loads and speed, it has replaced the ballast material in classical ballasted track with either reinforced concrete slab or asphalt layer in order to increase both stability and ...
Mohamed Hafez Fahmy Aly   +3 more
doaj   +1 more source

Fatigue damage analysis of ballastless slab track in heavy-haul railway tunnels

open access: yesUnderground Space, 2022
A ballastless slab track, which is commonly used in the track structures of heavy-haul railway tunnels, was analysed based on field measurement data of the Fuyingzi Tunnel on the Zhangtang Railway.
Zi-qiang Li   +4 more
doaj   +1 more source

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

open access: yesSensors, 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   +4 more
doaj   +1 more source

Model-Based Occupant Tracking Using Slab-Vibration Measurements [PDF]

open access: yesFrontiers in Built Environment, 2019
Sensor-based occupant tracking has the potential to enhance knowledge of the utilization of buildings. Occupancy-tracking strategies using footstep-induced floor vibrations may be beneficial for thermal-load prediction, security enhancement, and care-giving without undermining privacy.
Slah Drira   +6 more
openaire   +3 more sources

Dynamic performance of low vibration slab track on shared high-speed passenger and freight railway

open access: yesTransport, 2018
This work investigates dynamic performance of a low vibration slab track on a shared high-speed passenger and freight railway, and an optimal modulus of the isolation layer (rubber pad) is proposed to meet the adaptability of the track system under the ...
Qinglie He   +4 more
doaj   +1 more source

Study on the threshold for superposed deformation of simply supported bridge creep and track slab upwarp in high-speed railway

open access: yesAdvances in Mechanical Engineering, 2022
Based on long-term inspection data about track geometric irregularity of 32 m-span simply supported girder bridge in China Railway High-Speed for nearly 10 years, it is found that there is continuous periodic track longitudinal level (TLL) with different
Guolong Li   +4 more
doaj   +1 more source

Modelling rail corrugation with specific-track parameters focusing on ballasted track and slab track [PDF]

open access: yesVehicle System Dynamics, 2011
The objective of this paper is to compare 3 types of track (high performance ballasted track, STEDEF and AFTRAV) from the corrugation growth point of view. This work has considered different vehicle speeds and track radii, and the results have taken into account the four wheels of a bogie.
Oyarzabal de Celis, Olatz   +4 more
openaire   +2 more sources

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