Results 11 to 20 of about 29,036 (116)

Numerical Simulation and Test Study on Track Welding of QTT

open access: yesAdvances in Astronomy, 2023
Considering the stringent requirement of the pointing accuracy up to 2.5″ of the world’s largest full steerable radio telescope, this paper studies the welding experiment of the azimuth track of the antenna.
Duoxiang Xu   +4 more
doaj   +1 more source

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

Analysis of existing railway deformation caused by double shield tunnel construction in soil–rock composite stratum

open access: yesEnergy Reports, 2023
Subway tunnel construction often crosses existing railways, and the soil loss caused by shield construction will inevitably lead to deformation of the surrounding strata and uneven settlement of the adjacent railway tracks, but there are few studies on ...
Ning Jiao   +5 more
doaj   +1 more source

FEATURES OF THE DEFORMATION WORK OF THE RAILWAY TRACK

open access: yesNauka ta progres transportu, 2015
Purpose. The purpose of study is to identify the features of the railway track work deformation by establishing the boundaries of the track sustainability depending on the design and condition of systems of the upper and lower track structure, plan of a ...
I. O. Bondarenko
doaj   +1 more source

Incompatible thermal deformation of interlayers and corresponding damage mechanism of high-speed railway track structure

open access: yesHigh-Speed Railway, 2023
In the service period, the instability of ballastless track bed are mostly related to the damage of interlayers which are mainly resulted from the incompatible thermal deformation of interlayers.
Guotang Zhao, Lei Zhao, Yu Liu
doaj   +1 more source

Diagnostics of the Deformation Resistance of the Track Bed in the Inter -Station Section Palárikovo - Nové Zámky - Track No. 1

open access: yesCivil and Environmental Engineering, 2023
The fundamental pillars of the emerging European integrated railway area include improving the safety of rail transport and the quality parameters of railway lines and ensuring their interoperability.
Ižvolt Libor   +2 more
doaj   +1 more source

Effects of Long-Wavelength Track Irregularities Due to Thermal Deformations of Railway Bridge on Dynamic Response of Running Train

open access: yesApplied Sciences, 2018
In a fixed-end arch railway bridge restraining the displacement and rotation at the support to constrain the longitudinal deformation of the superstructure, vertical deformation occurs according to temperature change.
Sung Ho Hwang   +3 more
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

Deformation analysis in the bank slopes in the reservoir area of Baihetan Hydropower Station based on SBAS-InSAR technology

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao, 2022
The analysis of potential landslide deformation on the reservoir bank is an important link to ensure the safe operation of national water conservancy and hydropower facilities.
Zhengrong YANG   +4 more
doaj   +1 more source

Long-Term Monitoring for Track Slab in High-Speed Rail via Vision Sensing

open access: yesIEEE Access, 2020
Track slab deformation has become a challenging issue in high-speed rail (HSR) operation in recent years. This article proposed a novel approach for track slab deformation monitoring based on computer vision techniques.
Zai-Wei Li   +3 more
doaj   +1 more source

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