Results 1 to 10 of about 236,647 (162)

HRSBallast: A high-resolution dataset featuring scanned angular, semi-angular and rounded railway ballast [PDF]

open access: yesData in Brief, 2020
A high-resolution dataset of digitally scanned railway ballast (HRSBallast) is presented, consisting of 108 individual, digitised samples. The ballast samples were sourced from both a railway test track section located on a heavy haul coal export line in
André Broekman   +2 more
doaj   +2 more sources

Technological evaluation of stones from the eastern region of the state of São Paulo, Brazil, for railway ballast [PDF]

open access: yesScientific Reports
The correct choice of a stone aggregate for railway ballast is directly related to the stability, safety, efficiency, and maintenance costs of the track. The aggregate must meet several criteria to ensure it is the most appropriate material.
Daniela Tomaz Alves   +4 more
doaj   +2 more sources

Seismic Risk of Critical Transport Systems: Sensitivity Analysis of the Campania Railway Network to Bradyseism's Features. [PDF]

open access: yesRisk Anal
ABSTRACT This study examines the impact of epistemic uncertainties on the seismic risk of a critical transport system, the Campania railway network, during the ongoing bradyseismic unrest at Campi Flegrei, south of Italy. Seismic risk is quantified as the length of the railway requiring post‐event inspection, an operational proxy for service disruption.
De Risi R   +3 more
europepmc   +2 more sources

A Laboratory Study of Pressure Distribution and Residual Settlements in Wide Grading Double Layer Railway Ballast under Long-Term Cyclic Loading [PDF]

open access: yesArchives of Civil Engineering, 2020
Ballast layer has weighty share in the lifecycle costs of railway track. The strict standards and maintenance rules of ballast grading significantly contribute to the ballast costs.
Mykola Sysyn   +3 more
doaj   +1 more source

Quantification of the Mechanized Ballast Cleaning Process Efficiency Using GPR Technology

open access: yesRemote Sensing, 2021
Ground Penetrating Radar (GPR) has been used recently for diagnostics of the railway infrastructure, particularly the ballast layer. To overcome ballast fouling, mechanized ballast cleaning process, which increases track occupancy time and cost, is ...
Anna Borkovcová   +3 more
doaj   +1 more source

Modelling Time-Dependent Flow through Railway Ballast

open access: yesFluids, 2023
In this study, a numerical simulation of fluid flow through railway ballast in the time domain is presented, providing a model for unsteady-state flow.
Raed Alrdadi, Michael H. Meylan
doaj   +1 more source

Numerical modelling of thermal regime of railway track - structure with thermal insulation (Styrodur)

open access: yesJournal of Civil Engineering and Management, 2021
This paper presents the results of numerical modelling of the influence of various factors (geometrical layout of the structural layers of the railway track, climatic factors and ballast fouling) on the freezing of railway track structure with a built-in
Libor Ižvolt   +3 more
doaj   +1 more source

Development of fragility curves for railway embankment and ballast scour due to overtopping flood flow [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2016
Fragility curves evaluating a risk of railway embankment fill and track ballast scour were developed. To develop fragility curves, two well-documented events of single-track railway washout during floods in Japan were investigated.
R. Tsubaki   +3 more
doaj   +1 more source

Dynamic Properties Evaluation of Railway Ballast Using Impact Excitation Technique

open access: yesProceedings, 2018
Railway ballasted track, traditional railway track, consists of steel rails, sleepers, fastener system, ballast, sub-ballast and subgrade. Railway ballasted track has been widely used in railway system around the world.
Chayut Ngamkhanong   +2 more
doaj   +1 more source

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