Results 71 to 80 of about 967 (218)

Dynamic behavior model of the ballastless railroad track segment considering wave processes [PDF]

open access: yesE3S Web of Conferences, 2020
The paper is devoted to the modification of the dynamic behavior model of a flat orthotropic element under shock and vibrational impacts. The impacts were caused by solid cylindrical body for the case of ballastless railway construction.
Loktev Alexey   +6 more
doaj   +1 more source

Temperature Features of CRTSII Slab Ballastless Track in Severe Cold Region

open access: yesDEStech Transactions on Engineering and Technology Research, 2017
Damages, such as slab end warped, gaps of slab and bed, and cracks of track bed, of CRTSII Slab-Ballastless-Track (SBT) in high speed railway were studied for temperature changing significantly in severe cold regions. First, Contact-Thermal- Resistance (CTR) between Concrete-Asphalt (CA) mortars of the SBT and roadbed were defined.
Chao Guo   +4 more
openaire   +2 more sources

Weak Supervision: A Survey on Predictive Maintenance

open access: yesWIREs Data Mining and Knowledge Discovery, Volume 15, Issue 2, June 2025.
The authors conduct a comprehensive examination of Weakly Supervised Learning for Predictive Maintenance, the survey discusses the challenges and identifies open research lines. ABSTRACT The maintenance advancements achieved in Industry 4.0 generate large amounts of data, necessitating complete, accurate, and precise labels for training datasets to ...
Antonio M. Martínez‐Heredia   +1 more
wiley   +1 more source

Multiobjective railway alignment optimization using ballastless track and reduced cross-section in tunnel [PDF]

open access: yes, 2021
The increasing need for railway planning and design to connect growing cities in inland mountainous areas has pushed engineering efforts toward the research of railway tracks that must comply with more restrictive constraints.
Abbondati F.   +5 more
core   +1 more source

Formulating a Strategy for Securing High-Speed Rail in the United States, Research Report 12-03 [PDF]

open access: yes, 2013
This report presents an analysis of information relating to attacks, attempted attacks, and plots against high-speed rail (HSR) systems. It draws upon empirical data from MTI’s Database of Terrorist and Serious Criminal Attacks Against Public Surface ...
Butterworth, Bruce R.   +3 more
core   +1 more source

Stochastic Dynamic Analysis of High‐Speed Railway Vehicle–Track Systems Based on the Adaptive Probability Density Evolution Method

open access: yesAdvances in Civil Engineering, Volume 2025, Issue 1, 2025.
The theoretical and analytical approaches of stochastic dynamics constitute the foundation for performing in‐depth inquiries into the random dynamic behavior of high‐speed railway vehicle–track system (RVTS). The proposal of the generalized probability density evolution method (PDEM) has opened up new perspectives for the stochastic dynamic analysis of
Dengke Ma   +5 more
wiley   +1 more source

Effect of Dynamic Properties of Temperature and Frequency-Dependent Properties of Damping Layer on Vibration Characteristics of Ballastless Track

open access: yesShanghai Jiaotong Daxue xuebao, 2022
Taking the damping layer as the research object, first, by using the dynamic mechanical test, based on the high-order fractional derivative FVMP model, and in combination with the temperature-frequency equivalent principle, the temperature and frequency ...
NIU Zhenyu, LIU Linya, QIN Jialiang, ZUO Zhiyuan
doaj   +1 more source

Slab Track Optimization Using Metamodels to Improve Rail Construction Sustainability [PDF]

open access: yes, 2022
[EN] Railways are an efficient transportmode, but building and maintaining railway tracks has a significant environmental impact in terms of CO2 emissions and use of raw materials. This is particularly true for slab tracks, which require large quantities
Insa Franco, Ricardo   +3 more
core   +1 more source

The Protective Effect of Isolation Piles on Deformation of Adjacent Existing Railways

open access: yesAdvances in Civil Engineering, Volume 2025, Issue 1, 2025.
The isolation pile is the main measure used to reduce the mutual influence between neighboring projects in engineering. In response to the issue of the protective effect of isolation pile technology on the deformation of adjacent existing railway subgrades, this research adopted numerical simulation and a loading deformation analysis method considering
Ying Yang   +6 more
wiley   +1 more source

Ballastless Track – Minimizing the Climate Impact [PDF]

open access: yes, 2021
Railway transportation is becoming increasingly important for transport of passengers and goods in Sweden, Europe and many parts of the world. Ballastless (slab) railway systems are increasingly in use; however, their construction is known to cause a ...
L\uf6fgren, Ingemar   +2 more
core  

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