Discrete element modelling of track ballast capturing the true shape of ballast stones
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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
Investigation of the reversible response of track ballast considering complementary approaches
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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
Material Flow Analysis: An Analytical Tool for Strategic Planning Towards a Zero-Waste Solution for End-of-Life Ballast Flows on a Track and Ballast Renewal Site (French Conventional Line)
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DOI: 10.3390/resources13120165
Abstract: The 27,000 km of railway track in France represents approximately 100 million tonnes of ballast. This ballast requires maintenance approximately every 7 years, screening and partial renewal every 20 years, and complete replacement every 40… read more here.
Keywords: track ballast; ballast; ballast renewal; zero waste ... See more keywords