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DC Field | Value | Language |
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dc.contributor.author | Zhao, T | - |
dc.contributor.author | Crosta, G | - |
dc.contributor.author | Liu, Y | - |
dc.date.accessioned | 2022-07-25T14:05:27Z | - |
dc.date.available | 2022-07-25T14:05:27Z | - |
dc.date.issued | 2022-07-30 | - |
dc.identifier | ORCID iD: Tao Zhao https://orcid.org/0000-0003-2828-6314 | - |
dc.identifier | 105171 | - |
dc.identifier.citation | Zhao, T., Crosta, G. and Liu, Y. (2022) 'Analysis of slope fracturing under transient earthquake loading by random discrete element method', International Journal of Rock Mechanics and Mining Sciences, 157, 105171, pp. 1 - 13. doi: 10.1016/j.ijrmms.2022.105171. | en_US |
dc.identifier.issn | 0148-9062 | - |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/24984 | - |
dc.description | The data of this study are publicly available online (https://figshare. com/s/bdc2051f08d477988bba). | - |
dc.description | Supplementary data to this article can be found online at https://doi.org/10.1016/j.ijrmms.2022.105171 . | - |
dc.description.abstract | Copyright © 2022 The Authors. Earthquake can cause significant rock fracturing in either the short or long terms. A comprehensive analysis of the fracturing mechanism is critical for assessing the risks of potential slope failures, landslides and rock avalanches in seismic prone areas. This study employed 2D discrete element method (DEM) to investigate the fracturing of an intact rock slope of 600 m in base length and 300 m in height, with explicit considerations of material heterogeneity by random field theory. A total of 5400 DEM simulations were performed, and the characteristics of slope fracturing were statistically analysed. The dynamic loading by earthquake has triggered significant amplifications of ground motion and slope damage at the slope crest, resulting in densely spaced and interconnect fractures. These fractures split the slope into a collection of rock fragments with varied shapes, and the fragment size followed the Weibull's cumulative distribution. More than 70% of generated fragments were finer than 0.1 times the initial slope size, while only few large fragments existed at the slope base. The fragment size distribution pattern could quantitatively agree with field observations. The distributions of final slope damage index and cumulated fragmentation energy all followed the normal distribution pattern. The overall bulk seismic energy input into the slope was dissipated mainly at discontinuities and decreased with the increase of slope inclination. | en_US |
dc.description.sponsorship | This research was supported, in whole or in part, by the UK Engineering and Physical Sciences Research Council (EPSRC) New Investigator Award (grant EP/V028723/1), the Royal Society, Sino-British Fellowship Trust International Exchanges Award (grant IES\R2\202023) and the open funding of the State Key Laboratory of Water Resources and Hydropower Engineering Science (Wuhan University) (grant 2019SGG02). The Fondazione Cariplo project @RockHoRiZon – Advanced Tools for Rockfall Hazard and Risk zonation at the regional scale supported GC. | - |
dc.format.extent | 1 - 13 | - |
dc.format.medium | Print-Electronic | - |
dc.language.iso | en_US | en_US |
dc.rights | Copyright © 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/). | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | earthquake | en_US |
dc.subject | slope fracturing | en_US |
dc.subject | random field theory | en_US |
dc.subject | DEM | en_US |
dc.subject | ground motion amplification | en_US |
dc.subject | seismic energy | en_US |
dc.title | Analysis of slope fracturing under transient earthquake loading by random discrete element method | en_US |
dc.type | Article | en_US |
dc.identifier.doi | https://doi.org/10.1016/j.ijrmms.2022.105171 | - |
dc.relation.isPartOf | International Journal of Rock Mechanics and Mining Sciences | - |
pubs.publication-status | Published | - |
pubs.volume | 157 | - |
dc.identifier.eissn | 1879-2073 | - |
dc.rights.holder | The Authors | - |
Appears in Collections: | Dept of Civil and Environmental Engineering Research Papers |
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FullText.pdf | Copyright © 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/). | 8.26 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License