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Study of a small scale tyre-reinforced embankment

Li, L; Xiao, H; Ferreira, P; Cui, X; (2016) Study of a small scale tyre-reinforced embankment. Geotextiles and Geomembranes , 44 (2) pp. 201-208. 10.1016/j.geotexmem.2015.08.004. Green open access

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Abstract

Tyre-reinforced soil, used to improve slope stability, retaining walls, etc., has an excellent mechanical performance, and has the capability of a wider application and of reducing waste disposal costs. This article studies the stress and deformation characteristics, as well as the influencing factors related to the reinforcing arrangement, through small scale model embankment tests. It is shown that tyre reinforcement highly improved the strength of the model embankments; much higher stresses were mobilised inside the soil mass (around 2 times higher in comparison with the unreinforced embankment). There is an obvious plastic flow in the unreinforced embankment, while the plastic zone, on the reinforced embankments, was difficult to determine. Comparisons between the vertical settlement of the embankments show that the settlement of the reinforced embankment is roughly half of the settlement of the unreinforced embankment, for the same vertical load applied. These results also show that the tests with the top layer of reinforcement nearer the load application area and a smaller distance between the intermediate layers have a better performance, particularly in dense fabrics. The location of the top reinforcement layer seems to dominate the failure modes of the reinforced and unreinforced embankments, the horizontal deformations and the location of the shear bands in the embankment.

Type: Article
Title: Study of a small scale tyre-reinforced embankment
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.geotexmem.2015.08.004
Publisher version: http://dx.doi.org/10.1016/j.geotexmem.2015.08.004
Language: English
Additional information: © 2016. This manuscript version is published under a Creative Commons Attribution Non-commercial Non-derivative 4.0 International licence (CC BY-NC-ND 4.0). This licence allows you to share, copy, distribute and transmit the work for personal and non-commercial use providing author and publisher attribution is clearly stated. Further details about CC BY licences are available at http://creativecommons.org/licenses/by/4.0. Access may be initially restricted by the publisher.
Keywords: Science & Technology, Technology, Physical Sciences, Engineering, Geological, Geosciences, Multidisciplinary, Engineering, Geology, Geosynthetics, Waste tyres, Soil reinforcement, Stress, Settlement, Model test, performance, design, tires
UCL classification: UCL > Provost and Vice Provost Offices
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/1504887
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