Results 21 to 30 of about 236,647 (162)
Applied Mechanics, 2023 The article solves the problem of theoretically determining the deformable characteristics of railway ballast, considering its condition through mathematical modeling. Different tasks require mathematical models with different levels of detail of certain
Dmytro Kurhan +3 more
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Archives of Civil Engineering, 2013 The mechanical characteristics of the railway superstructure are related to the properties of the ballast, and especially to the particle size distribution of its grains.
Guerrieri M., Parla G.
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A CFD-DEM Based Numerical Investigation of Debris Flow on Ballasted Railway Track [PDF]
E3S Web of Conferences, 2023 Debris flow occurring in mountainous areas can cause issues to railway tracks. Debris flow may cause large track deformation and even track breakage and introduce server ballast fouling afterwards. After the flash of a debris flow, the fine particles can
Gong Yufeng, Qian Yu
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SPECIAL LABORATORY TESTING METHOD FOR EVALUATION PARTICLE BREAKAGE OF RAILWAY BALLAST MATERIAL
Nauka ta progres transportu, 2018 Purpose. There are special, standardized laboratory test methods to evaluate railway ballast particle breakage; they are the Los Angeles and the Micro-Deval abrasion test.
S. Fischer, A. Németh
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Civil and Environmental Engineering, 2023 Based on the quality control diagnostics of the used base layers on the interstation railway section Palárikovo - Nové Zámky, the article analyzes the achieved results of static load tests that were carried out on the plane of the sub-ballast upper ...
Ižvolt Libor +3 more
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Prediction of Lifespan of Railway Ballast Aggregate According to Mechanical Properties of it
The Baltic Journal of Road and Bridge Engineering, 2017 As the railway lifespan is the main criterion for selection of the aggregate for ballast and for planning the maintenance of the railroad, it is important to define the relationship between the particle load resistant characteristics and a lifetime of ...
Vaidas Ramūnas +4 more
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Optimization of Subgrade Structure Parameters of Ballasted Track Passenger Dedicated Line
Shanghai Jiaotong Daxue xuebao, 2021 In order to improve the force condition of ballasted railway subgrade structure and reduce maintenance cost, it is necessary to study the influence of subgrade structure parameters on subgrade dynamic response under train load.
WANG Wei +3 more
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Design Method for Geocell Stabilisation of Railway Subballast [PDF]
E3S Web of ConferencesRailways are often built on soft soils. Geocells may be used for stabilizing the railway subballast, in such a way as to decrease the overall thickness of ballast – subballast, to decrease settlements and to increase the railway lifetime.
Rimoldi Pietro
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Modelling Experimental Measurements of Fluid Flow through Railway Ballast
Fluids, 2022 The flooding of railway ballasts can cause extensive damage. This process has been the subject of several experimental investigations. In the present work, a relatively easy to implement approach to modelling this fluid flow is presented.
Raed Alrdadi, Michael H. Meylan
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The interaction between railway vehicle dynamics and track lateral alignment [PDF]
, 2016 Track geometry deteriorates with traffic flow, thus it needs to be regularly restored using tamping or other method. As the deterioration is mainly in the vertical direction this aspect has been widely studied and models for its analysis developed ...
Gong, Cencen +2 more
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