Results 81 to 90 of about 3,855 (211)

Analysis of the railway track as a spatially periodic structure [PDF]

open access: yes, 2012
This article presents a new and computationally efficient method of analysis of a railway track modelled as a continuous beam of 2N spans supported by elastic vertical springs.
García-Palacios, Jaime H.   +2 more
core   +2 more sources

Optimisation of Transition Areas between Ballastless Track and Ballasted Track in the Area of the Tunnel Turecky Vrch

open access: yesCommunications, 2018
The paper follows previously published papers in Communications - Scientific Letters of the University of Zilina No. 4/2014, No. 4/2015 and No. 4/2016, where were presented the results of the diagnostics of the track geometry of the experimental sections
Libor Izvolt   +2 more
doaj   +1 more source

Numerical investigation of the behavior of approach slabs in transition zone of ballasted track to box culvert in high-speed railway lines [PDF]

open access: yesJournal of Structural and Construction Engineering, 2016
One of the most important issues in operation of high-speed railway tracks is avoiding to sudden variation of the track stiffness. Culverts and bridges are common areas which this problem is occurred along the railway lines.
Morteza Esmaeili   +2 more
doaj  

Scoping assessment of free-field vibrations due to railway traffic [PDF]

open access: yes, 2018
The number of railway lines both operational and under construction is growing rapidly, leading to an increase in the number of buildings adversely affected by ground-borne vibration (e.g. shaking and indoor noise).
Connolly, David P.   +5 more
core  

Numerical Analysis of the Dynamic Behavior of the Ballasted Railway Track Under Loading of Trains at Variable Speeds to Improve the Prediction of Dynamic Amplification Factors and Damage to Its Components

open access: yesShock and Vibration
This study contributes to the dynamic amplification effects of different speeds of trains on the behavior of the ballasted railway. The damage mechanisms of the main components of ballasted railway tracks were investigated in 3D numerical modeling using ...
Zoa Ambassa, Jean Chills Amba
doaj   +1 more source

Critical Speed of Ballasted Railway Tracks: Influence of Ballast and Subgrade Degradation

open access: yesTransportation Geotechnics, 2023
Rakesh Sai Malisetty   +1 more
openaire   +1 more source

Stress-strain behavior of railway embankments stabilized with grouted micropiles

open access: yesAlexandria Engineering Journal
Excessive ballasted track deformations may occur during the railway operations due to poor load bearing capacity of the embankment (placed soil or natural ground) or the manifest accumulation of subsidence caused by the soil consolidation and the passage
Oleksii Tiutkin   +3 more
doaj   +1 more source

Analysis of Results of Monitoring and Prediction of Quality Development of Ballasted and Ballastless Track Superstructure and its Transition Areas

open access: yesCommunications, 2016
Securing durability of parameter quality of track alignment design and track geometry is a goal of each railway infrastructure manager. To accomplish this goal, various methods and procedures are applied, but they are all based on regular diagnostics ...
Libor Izvolt   +2 more
doaj   +1 more source

Railway-induced ground vibrations – a review of vehicle effects [PDF]

open access: yes, 2014
This paper is a review of the effect of vehicle characteristics on ground- and track borne-vibrations from railways. It combines traditional theory with modern thinking and uses a range of numerical analysis and experimental results to provide a broad ...
Ahlbeck DR   +143 more
core   +1 more source

Efficient practices in railway ballast maintenance and quality assessment using GPR [PDF]

open access: yes, 2017
The need for effective and efficient railway maintenance is always more demanded all over the world as the main consequence of aging and degradation of infrastructures.
Alani, Amir   +4 more
core   +1 more source

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