Results 31 to 40 of about 18,753 (176)

An entropy-based analysis of GPR data for the assessment of railway ballast conditions [PDF]

open access: yes, 2017
The effective monitoring of ballasted railway track beds is fundamental for maintaining safe operational conditions of railways and lowering maintenance costs.
Alani, Amir   +2 more
core   +1 more source

Railway Ballast Monitoring by GPR: A Test-Site Investigation [PDF]

open access: yesRemote Sensing, 2019
Effective maintenance of railways requires a comprehensive assessment of the actual condition of the construction materials involved. In this regard, Ground-Penetrating Radar (GPR) stands as a viable alternative to the invasive and time-consuming traditional techniques for the inspection of these infrastructures.
Luca Bianchini Ciampoli   +2 more
openaire   +2 more sources

Development of a whole life cycle cost model for electrification options on the UK rail system [PDF]

open access: yes, 2016
Projects to deliver Overhead Line Equipment (OLE) electrification on the UK rail infrastructure system presents technical challenges which the rail industry in Britain have not traditionally had to consider.
Baguley, Paul   +2 more
core   +1 more source

Dynanics of a vehicle-track coupling system at a rail joint [PDF]

open access: yes, 2015
The dynamic behaviour at a rail joint is examined using a two-dimensional vehicle–track coupling model. The track system is described as a finite-length beam resting on a double-layer discrete viscous-elastic foundation.
Cencen Gong   +5 more
core   +1 more source

Increasing the Confinement in Railway Track Ballast Layers

open access: yes, 2022
Financial support provided by LIAISON (HORIZON-CL5-2022-D6-02- 06) and by the Ministry of Higher Education, Science and Technology of the Republic of Slovenia - and The Slovenian Research Agency (ARRS) Programme group P2-0273 and Core funding Z1-1858.
Lenart, Stanislav, Karumanchi, Siva Ram
openaire   +2 more sources

Railroad ballast behavior in triaxial compression tests with and without geogrid [PDF]

open access: yesMATEC Web of Conferences, 2019
This paper highlights recent laboratory studies at Emperor Alexander I St. Petersburg State Transport University, using large-scale cylindrical triaxial apparatus, which helped quantify the geogrid performance in railway ballast.
Petriaev Andrei, Ganchits Victor
doaj   +1 more source

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

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   +1 more source

Geophysical characterization of derelict coalmine workings and mineshaft detection: a case study from Shrewsbury, United Kingdom [PDF]

open access: yes, 2009
A study site of derelict coalmine workings near Shrewsbury, United Kingdom was the focus for multi‐phase, near‐surface geophysical investigations. Investigation objectives were: 1) site characterization for remaining relict infrastructure foundations, 2)
Cassidy, NJ   +8 more
core   +2 more sources

Multi‐level fatigue reliability assessment of reinforced concrete railway bridges

open access: yesStructural Concrete, EarlyView.
Abstract This paper presents a multi‐level reliability framework for assessing the fatigue life of reinforced concrete (RC) railway trough bridges subjected to cyclic loading. The framework incorporates increasing levels of analytical complexity and real‐world data in four steps. First, an analytical model applies S–N curves and the Palmgren–Miner rule
Silvia Sarmiento   +7 more
wiley   +1 more source

Real-Time Inspection System for Ballast Railway Fasteners Based on Point Cloud Deep Learning

open access: yesIEEE Access, 2020
Rail fasteners are the most numerous components in railways and they should be inspected periodically. Manual inspection is currently a common solution, which is laborious and low-efficient. Some automatic inspection approaches are proposed.
Hao Cui   +3 more
doaj   +1 more source

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