Railway ballast condition assessment using ground-penetrating radar – An experimental, numerical simulation and modelling development
Sign Up to like & getrecommendations! Published in 2017 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2017.02.110
Abstract: Abstract This paper reports on the ground-penetrating radar (GPR)-based assessment of railway ballast which was progressively “polluted” with a fine-grained silty soil material. It is known how the proper operation of a ballast track bed… read more here.
Keywords: numerical simulation; penetrating radar; ground penetrating; simulation ... See more keywords
Direct shear properties of railway ballast mixed with tire derived aggregates: Experimental and numerical investigations
Sign Up to like & getrecommendations! Published in 2019 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2018.11.284
Abstract: Abstract This paper presents results from laboratory direct shear tests and discrete element method (DEM) simulations of railway ballast mixed with different contents of tire derived aggregate (TDA). The stress-strain behavior of the ballast-TDA mix… read more here.
Keywords: railway ballast; direct shear; tda; ballast tda ... See more keywords
Evaluation of the effect of water saturation on the strength of individual railway ballast aggregate
Sign Up to like & getrecommendations! Published in 2019 at "Transportation Geotechnics"
DOI: 10.1016/j.trgeo.2018.12.005
Abstract: Abstract Decreasing the hydraulic conductivity of railway ballast course can lead to the saturation of aggregate which can adversely affect the proper performance of this structural layer. The main objective of the present study is… read more here.
Keywords: ballast aggregate; saturation; railway ballast; strength ... See more keywords
An Entropy-Based Analysis of GPR Data for the Assessment of Railway Ballast Conditions
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2017.2683507
Abstract: The effective monitoring of ballasted railway track beds is fundamental for maintaining safe operational conditions of railways and lowering maintenance costs. Railway ballast can be damaged over time by the breakdown of aggregates or by… read more here.
Keywords: data assessment; railway; gpr data; ballast ... See more keywords
A Numerical Study of Railway Ballast Subjected to Direct Shearing Using the Discrete Element Method
Sign Up to like & getrecommendations! Published in 2020 at "Advances in Materials Science and Engineering"
DOI: 10.1155/2020/3404208
Abstract: Railway ballast is a coarse granular material used to carry train loads and provide drainage for the rail tracks. This study presents numerical explorations of the mechanical performance of ballast aggregates subjected to direct shear… read more here.
Keywords: element method; ballast aggregates; railway ballast; ballast ... See more keywords