Coop, MR;
Wong, CPY;
(2020)
Development of inter-particle friction in a railway ballast.
Géotechnique Letters
, 10
(4)
pp. 535-541.
10.1680/jgele.19.00080.
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Abstract
A detailed experimental programme investigated how the coefficient of friction at particle contacts for a typical UK railway ballast varied during cyclic loading. Despite a decrease of roughness, the friction coefficient increased steadily, stabilising in the region of tens of cycles. In contrast to previous work on the contact behaviour of sands, water inundation caused a significant but reversible decrease of the coefficient, while the generation of a significant amount of abraded fines did not affect it, nor did the load level.
| Type: | Article |
|---|---|
| Title: | Development of inter-particle friction in a railway ballast |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1680/jgele.19.00080 |
| Publisher version: | https://doi.org/10.1680/jgele.19.00080 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | friction; laboratory tests; particle-scale behaviour; rocks/rock mechanics |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10112114 |
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