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   Articles with "ballast" as a keyword



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Stabilisation of Stiffer Rail Track Substructure Using Artificial Inclusion

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recommendations! Published in 2020 at "Indian Geotechnical Journal"

DOI: 10.1007/s40098-019-00406-1

Abstract: The railway transport system in many countries plays a significant role in the passage of bulk freight and passengers. However, increased train speeds and higher freight loads (large dynamic wheel loads) accelerate the deterioration of… read more here.

Keywords: substructure; track; stiffer; rail track ... See more keywords
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Experimental investigation of the characteristics of a granular ballast bed under cyclic longitudinal loading

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recommendations! Published in 2018 at "Construction and Building Materials"

DOI: 10.1016/j.conbuildmat.2017.12.037

Abstract: Abstract In this study, tests are performed for studying the characteristics of a ballast bed under cyclic longitudinal loading at different loading rates and a displacement amplitude based on a full-scale test model. The deformation… read more here.

Keywords: ballast bed; amplitude; bed cyclic; cyclic longitudinal ... See more keywords
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Fouling and water content influence on the ballast deformation properties

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recommendations! Published in 2018 at "Construction and Building Materials"

DOI: 10.1016/j.conbuildmat.2018.09.058

Abstract: Abstract This paper discusses the drained static triaxial testing on granite ballast material with different amount of breakdown fouling and water content. Large-scale, 10 in., triaxial equipment was used for this testing program at the University… read more here.

Keywords: content influence; fouling water; influence ballast; water content ... See more keywords
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Random generation method of ballast 2D topology based on particle characteristics

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recommendations! Published in 2019 at "Construction and Building Materials"

DOI: 10.1016/j.conbuildmat.2019.06.131

Abstract: Abstract Research on the topological rule and random generation method of a ballast silhouette can realize different batch generations of ballast 2D topology under the condition of definite gradation, which can lay a foundation for… read more here.

Keywords: ballast; random generation; method; topology ... See more keywords
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Study on the particle breakage of ballast based on a GPU accelerated discrete element method

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recommendations! Published in 2020 at "Geoscience frontiers"

DOI: 10.1016/j.gsf.2019.06.006

Abstract: Abstract Breakage of particles will have greatly influence on mechanical behavior of granular material (GM) under external loads, such as ballast, rockfill and sand. The discrete element method (DEM) is one of the most popular… read more here.

Keywords: ballast; particle breakage; discrete element; method ... See more keywords
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The efficiency of combined coagulant and ballast to remove harmful cyanobacterial blooms in a tropical shallow system.

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recommendations! Published in 2017 at "Harmful algae"

DOI: 10.1016/j.hal.2017.04.007

Abstract: We tested the hypothesis that a combination of coagulant and ballast could be efficient for removal of positively buoyant harmful cyanobacteria in shallow tropical waterbodies, and will not promote the release of cyanotoxins. This laboratory… read more here.

Keywords: microcystis; coagulant ballast; cylindrospermopsis; ballast ... See more keywords
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Discrete element modelling of track ballast capturing the true shape of ballast stones

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recommendations! Published in 2021 at "Powder Technology"

DOI: 10.1016/j.powtec.2021.02.066

Abstract: Abstract Railway ballast affected by heavy cyclic loading degrades and spreads resulting in an uncomfortable transportation caused by undesirable vibrations. Restoring a well sorted track ballast can be expensive. This paper analyzes track ballast deformation… read more here.

Keywords: ballast stones; discrete element; ballast; track ballast ... See more keywords
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Drainage potential of degraded railway ballast considering initial gradation and intrusion of external fine materials

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recommendations! Published in 2019 at "Soils and Foundations"

DOI: 10.1016/j.sandf.2019.12.011

Abstract: Abstract The aggregate in the ballast layer of the railway track structure degrades due to the splitting of single particles and the abrasion of the angular corners, resulting in a ballast course comprised of degraded… read more here.

Keywords: hydraulic conductivity; degraded ballast; considering initial; aggregate ... See more keywords
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The use of laser technology to investigate the effect of railway ballast roundness on shear strength

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recommendations! Published in 2017 at "Transportation geotechnics"

DOI: 10.1016/j.trgeo.2017.05.003

Abstract: Abstract The heavy haul coal line of the South African railway network is facing a problem where ballast particles are becoming rounded, negatively affecting performance and thus leading to shorter planned maintenance cycles. This has… read more here.

Keywords: effect; ballast; shear strength; roundness shear ... See more keywords
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Investigation of the reversible response of track ballast considering complementary approaches

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recommendations! Published in 2021 at "Transportation geotechnics"

DOI: 10.1016/j.trgeo.2020.100436

Abstract: Abstract This paper aims at showing that the reversible behavior of track ballast can be reasonably modeled by a homogeneous elastic layer in the computation of the reversible dynamic response of railway structures subjected to… read more here.

Keywords: ballast; response; triaxial tests; layer ... See more keywords
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Influence of Tire-Derived Aggregates on the Properties of Railway Ballast Material

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recommendations! Published in 2017 at "Journal of Materials in Civil Engineering"

DOI: 10.1061/(asce)mt.1943-5533.0001702

Abstract: AbstractThis paper presents the results from a laboratory study in which the influence of metal-free tire-derived aggregates (TDA) on the performance of ballast materials was evaluated. The use of waste TDA mixed with ballast of… read more here.

Keywords: ballast; derived aggregates; influence tire; tire derived ... See more keywords