Cyclic shear behaviour of fibre-reinforced mine tailings-Reference-Cited by-同舟云学术

Cyclic shear behaviour of fibre-reinforced mine tailings

Published:2015-04 Issue:2 Volume:22 Page:196-206
ISSN:1072-6349
Container-title:Geosynthetics International
language:en
Short-container-title:Geosynthetics International

Author:

Festugato L.¹,Consoli N.C.²,Fourie A.³

Affiliation:

1. Professor, Department of Civil Engineering, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Telephone: +55 51 3308 3416; Telefax: +55 51 3308 3999; E-mail: lucas@ufrgs.br

2. Professor, Department of Civil Engineering, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Telephone: +55 51 3308 3552; Telefax: +55 51 3308 3999; E-mail: consoli@ufrgs.br (corresponding author)

3. Professor, Department of Civil and Resource Engineering, The University of Western Australia, Perth, Australia, Telephone: +61 8 6488 4661; Telefax: +61 8 6488 1380; E-mail: andy.fourie@civil.uwa.edu.au

Abstract

ABSTRACT: In order to investigate techniques to improve the mechanical behaviour of mine tailings, an investigation of the cyclic shear response of fibre-reinforced mine tailings was carried out in the present study. Cyclic simple shear tests were conducted on fibre-reinforced and non-reinforced mine tailings. The tailings, produced from gold mining, were classified as sandy silt with traces of clay. Polypropylene fibres (zero and 0.5%) were added to the material. Under monotonic shear conditions, the addition of fibres unstiffens the material. Under shear stress-controlled cyclic conditions, fibres improved the material shear response and produced a stiffer material. Under shear strain-controlled cyclic conditions, no improvement was observed as a result of addition of fibres and there was no effect on material stiffness. The agreement of the strength envelopes of both monotonic and cyclic stress paths, under different cyclic loading conditions, allows the use of the same strength parameters for mixtures analysed under different loading conditions.

Publisher

Thomas Telford Ltd.

Subject

Geotechnical Engineering and Engineering Geology,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/gein.15.00005

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