Babiker, A.F.A., Smith, C.C., Gilbert, M. et al. (1 more author) (2014) Non-associative limit analysis of the toppling-sliding failure of rock slopes. International Journal of Rock Mechanics and Mining Sciences, 71. 1 - 11. ISSN 1365-1609
Abstract
Limit analysis is a powerful procedure which is widely used in geotechnical engineering for the analysis of collapse states. However, when applied to toppling-sliding failures in rock slopes, overestimates of stability can arise, and hence limit equilibrium and DEM approaches have proved more popular. In this paper it is shown that limit analysis tends to overestimate stability due to the presence of potentially unrealistic dilatancy at the joints. To address this, a modified plastic limit analysis procedure incorporating a non-associative, low dilation, friction model is proposed. Originally developed to assess the stability of masonry walls, the procedure is here extended to allow an envelope of potential solutions to be obtained. The numerical results obtained are found to closely match both analytical and experimental results from the literature, demonstrating the significant promise of the procedure. © 2014 The Authors.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014 The Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Funding Information: | Funder Grant number EPSRC EP/I014489/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 16 Sep 2014 14:18 |
Last Modified: | 16 Sep 2014 14:18 |
Published Version: | http://dx.doi.org/10.1016/j.ijrmms.2014.06.008 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.ijrmms.2014.06.008 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:80460 |