Results 1 to 10 of about 197,871 (300)

Railway track surface faults dataset. [PDF]

Data Brief
L'entretien de l'infrastructure ferroviaire est essentiel pour assurer des réseaux de transport sûrs et efficaces. Les défauts de la surface des voies ferrées tels que les fissures, les lambeaux, les joints, les éclaboussures, les déblais, les accroupissements, les rainures et divers autres défauts, qui posent des défis importants à l'intégrité et à la
Arain A, Mehran S, Shaikh MZ, Kumar D, Chowdhry BS, Hussain T.   +5 more
europepmc   +4 more sources

Current situation and development trend of design methods for subgrade structure of high speed railways [PDF]

Railway Sciences, 2023
Purpose – This method will become a new development trend in subgrade structure design for high speed railways. Design/methodology/approach – This paper summarizes the structural types and design methods of subgrade bed for high speed railways in China ...
Yangsheng Ye, Degou Cai, Qianli Zhang, Shaowei Wei, Hongye Yan, Lin Geng   +5 more
doaj   +1 more source

A constitutive model for cyclic densification of coarse-grained soil filler for the high-speed railway subgrade considering particle breakage [PDF]

Railway Sciences, 2022
Purpose – This study aims to propose a semiempirical and semitheoretical cyclic compaction constitutive model of coarse-grained soil filler for the high-speed railway (HSR) subgrade under cyclic load.
Yangsheng Ye, Degou Cai, Lin Geng, Hongye Yan, Junkai Yao, Feng Chen   +5 more
doaj   +1 more source

FEM analysis of the effects of the ballast renewal work on continuous welded rails and proposal of the new restriction of work at a low temperature

Nihon Kikai Gakkai ronbunshu, 2021
This study aims to establish a new restriction of ballast renewal works at a low temperature in winter. The authors construct a FEM model of railway track which simulates the ballast renewal work at a low temperature and perform the FEM analysis under ...
Shingo TAMAGAWA, Yuki NISHINOMIYA, Tomoya KOKETSU   +2 more
doaj   +1 more source

Railway track design & degradation [PDF]

MATEC Web of Conferences, 2018
The long-term behaviour of railway track has attracted increasing attention in recent years. Improvements in long-term structural performance reduce demands for maintenance and increase the continuous availability of railway lines. The focus of this paper is on the prediction of the sensitivity of a track design to long-term deterioration in terms of ...
Sadri, M. (author), Lu, T. (author), Zoeteman, A. (author), Steenbergen, M.J.M.M. (author)   +3 more
openaire   +4 more sources

Effects of ballast renewal work at low temperature on inward rail displacements and axial rail forces of continuous welded rails on sharp curve

Nihon Kikai Gakkai ronbunshu, 2020
This study aims to clarify the effects of the ballast renewal work at low temperature on the inward rail displacements and the axial rail forces of continuous welded rails on sharp curve.
Shingo TAMAGAWA, Yuki NISHINOMIYA, Shinichi OTA, Tetsuya NAKANO   +3 more
doaj   +1 more source

FEM models for jointed railway tracks and a loading test method on test tracks composed of a single rail fastening system at rail joints

Nihon Kikai Gakkai ronbunshu, 2022
This study aims to establish a loading test method on test tracks composed of a single rail fastening at rail joints. The authors construct FEM models for railway tracks which represent the rail joint parts accurately and perform the FEM analysis.
Shingo TAMAGAWA, Tadashi DESHIMARU, Tomoyuki YAMAMOTO   +2 more
doaj   +1 more source

Basic study on the evaluation of track components strength and running safety under repeated passage of vehicles on rail gaps

Nihon Kikai Gakkai ronbunshu, 2023
In a section which a wireless train control system is installed and the track circuit is removed, it is difficult to detect rail broken. Under such circumstances, the vehicle is assumed to run repeatedly on rail gaps until rail broken is found by rail ...
Katsutoshi SHIOTA, Yuki NISHINOMIYA, Shintaro YASUDA   +2 more
doaj   +1 more source

Simple dynamic model of predicting the axle-box acceleration when trains pass through the rupture part of rails

Nihon Kikai Gakkai ronbunshu, 2021
In this paper, the simple dynamic model for calculation of the axle-box acceleration (ABA) is established for conveniently detecting rail breakage on trains.
Hiroyuki AIZAWA, Mitsuru HOSODA, Ryuichi YAMAMOTO   +2 more
doaj   +1 more source

Switch and crossing for single line operation at double track section

Nihon Kikai Gakkai ronbunshu, 2020
This study aims to develop the switch and crossing for a single line operation at the double track section. First, the authors design and produce the simplified structure of the switch and crossing for passenger trains which can be installed without the ...
Shingo TAMAGAWA, Saki SHIMIZU, Teruhisa MIHARA, Yuya OIKAWA   +3 more
doaj   +1 more source