The University of Southampton
University of Southampton Institutional Repository

Measuring the area and number of ballast particle contacts at sleeper/ballast and ballast/subgrade interfaces

Measuring the area and number of ballast particle contacts at sleeper/ballast and ballast/subgrade interfaces
Measuring the area and number of ballast particle contacts at sleeper/ballast and ballast/subgrade interfaces
The number of railway ballast particles in contact with a sleeper may be relatively small. The discrete and non-uniform nature of these contacts may cause breakage and wear. This article explores the use of pressure paper to record the loading history of sleeper to ballast particle contacts over >3 million loading cycles in full size tests. The results demonstrate that the actual contact area may be less than 1% of the total, and that the number of individual contacts is in the hundreds. Under sleeper pads, a finer ballast grading, a shallower shoulder slope and changes to the sleeper material are found to increase the number and area of contacts.
ballast, sleeper, pressure paper, under sleeper pad (USP), grading
2049-5358
45-72
Abadi, Taufan
a443c7ca-bc7e-46cb-8224-fd2f8fce8bf1
Le Pen, L.
4a38e256-d113-4bba-b0d4-32d41995928a
Zervos, A.
9e60164e-af2c-4776-af7d-dfc9a454c46e
Powrie, W.
600c3f02-00f8-4486-ae4b-b4fc8ec77c3c
Abadi, Taufan
a443c7ca-bc7e-46cb-8224-fd2f8fce8bf1
Le Pen, L.
4a38e256-d113-4bba-b0d4-32d41995928a
Zervos, A.
9e60164e-af2c-4776-af7d-dfc9a454c46e
Powrie, W.
600c3f02-00f8-4486-ae4b-b4fc8ec77c3c

Abadi, Taufan, Le Pen, L., Zervos, A. and Powrie, W. (2015) Measuring the area and number of ballast particle contacts at sleeper/ballast and ballast/subgrade interfaces. The International Journal of Railway Technology, 4 (2), 45-72.

Record type: Article

Abstract

The number of railway ballast particles in contact with a sleeper may be relatively small. The discrete and non-uniform nature of these contacts may cause breakage and wear. This article explores the use of pressure paper to record the loading history of sleeper to ballast particle contacts over >3 million loading cycles in full size tests. The results demonstrate that the actual contact area may be less than 1% of the total, and that the number of individual contacts is in the hundreds. Under sleeper pads, a finer ballast grading, a shallower shoulder slope and changes to the sleeper material are found to increase the number and area of contacts.

PDF Taufan-Abadi-UIC-Paper-Final-Revision_nontypeset.pdf - Accepted Manuscript
Download (1MB)

More information

Accepted/In Press date: 9 January 2015
e-pub ahead of print date: 9 January 2015
Published date: 1 April 2015
Keywords: ballast, sleeper, pressure paper, under sleeper pad (USP), grading
Organisations: Infrastructure Group

Identifiers

Local EPrints ID: 374033
URI: https://eprints.soton.ac.uk/id/eprint/374033
ISSN: 2049-5358
PURE UUID: 1e7d58fa-e1bb-4686-8dbb-572689c7269c
ORCID for L. Le Pen: ORCID iD orcid.org/0000-0002-4362-3895
ORCID for A. Zervos: ORCID iD orcid.org/0000-0002-2662-9320
ORCID for W. Powrie: ORCID iD orcid.org/0000-0002-2271-0826

Catalogue record

Date deposited: 05 Feb 2015 11:35
Last modified: 06 Jun 2018 13:06

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×