Results 11 to 20 of about 236,647 (162)
Laboratory Evaluation of Railway Ballast Consolidation by the Non-Destructive Testing
Communications, 2019 The property of railway track to resist the irreversible deformation for a long-term operational loading considerably depends on the ballast layer. The ballast layer is the element of a railway track whose mechanical properties and state are formed in ...
Mykola Sysyn +4 more
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The geotechnical behaviour of ballast materials for railway track maintenance [PDF]
, 2004 The search for an improved mechanised method of maintaining railway track to the correct level and alignment led to the development of the stoneblower, a machine that lifts the rail and attached sleepers and pneumatically injects the required amount of ...
Fair, Peter
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Measuring the area and number of ballast particle contacts at sleeper/ballast and ballast/subgrade interfaces [PDF]
, 2015 The number of railway ballast particles in contact with a sleeper may be relatively small. The discrete and non-uniform nature of these contacts may cause breakage and wear.
Le Pen, Louis +3 more
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Dependence of shape on particle size for a crushed rock railway ballast [PDF]
, 2013 Laboratory testing of railway ballast poses practical difficulties because the particle size is often too large for most standard apparatus. There are therefore advantages in developing a scaled material whose behavior is representative of the full size ...
Le Pen, Louis +9 more
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Railroad Ballast Particle Breakage with Unique Laboratory Test Method
Acta Technica Jaurinensis, 2019 This paper demonstrates the results in the research topic of the railway ballast particles’ breakage test with unique laboratory test. The most railway lines in the world have so called traditional superstructure (ballasted tracks). In the past few years
Erika Juhász, Szabolcs Fischer
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Fracture and Structural Integrity, 2022 The size and shape of individual grains play an important role in the mechanical behavior of granular materials such as the strength and the stability of railway ballast. The aim of this research is to investigate materials from which reproducible grains
B. Szab� +3 more
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Idealisations of Dynamic Modelling for Railway Ballast in Flood Conditions
Applied Sciences, 2019 As the main component of a ballasted railway system, railway ballast is frequently used by the railway industry to enhance constructability and practicality.
Sakdirat Kaewunruen, Tao Tang
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Cogent Engineering, 2021 This study assessed the aggregate properties that influence track ballast performance along selected Nigerian railway lines. Ballast materials from five selected rail tracks (RT1, RT2, RT3, RT4, and RT5) in Nigeria were collected and assessed in present ...
Daniel E. Bassey +3 more
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Tikrit Journal of Pure Science, 2022 The research aims to find the suitability of limestone rocks belonging to the Sinjar and Pila Spi Formations in the southwestern part of the Bazian fold in Sulaymaniyah Governorate for building purposes and as a railway ballast stone by conducting some ...
Maher Najm Abdullah +2 more
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SPECIFIC ASSESSMENT METHOD OF RAILWAY BALLAST PARTICLE DEGRADATION BASED ON UNIQUE LABORATORY TEST
Nauka ta progres transportu, 2018 Purpose. There are specific, standardized laboratory test methods to assess railway ballast particle degradation; they are the Los Angeles (EN 1097-2) and the Micro-Deval abrasion (EN 1097-1) tests. These testing methods can’t take into consideration the
S. Fischer +3 more
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