Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/20827
Full metadata record
DC FieldValueLanguage
dc.contributor.authorShen, W-
dc.contributor.authorZhao, T-
dc.contributor.authorDai, F-
dc.contributor.authorCrosta, GB-
dc.contributor.authorWei, H-
dc.date.accessioned2020-05-13T13:25:03Z-
dc.date.available2020-05-13T13:25:03Z-
dc.date.issued2020-04-22-
dc.identifierORCiD: Tao Zhao https://orcid.org/0000-0003-2828-6314-
dc.identifierORCiD: Feng Dai https://orcid.org/0000-0003-3510-4734-
dc.identifier.citationShen, W. et al. (2020) 'Discrete Element Analyses of a Realistic-shaped Rock Block Impacting Against a Soil Buffering Layer', Rock Mechanics and Rock Engineering, 53 (8), pp. 3807-3822. doi: 10.1007/s00603-020-02116-0.en_US
dc.identifier.issn0723-2632-
dc.identifier.urihttps://bura.brunel.ac.uk/handle/2438/20827-
dc.description.abstractThis study is devoted to understanding the impact of irregularly shaped rock blocks against a soil buffering layer above a rock shed via numerical simulations by discrete element method (DEM). In the DEM model, the rock block is represented by an assembly of densely packed and bonded spherical particles with the block shape reconstructed from the laser scanning results of a real rock block. The soil buffering layer is modeled as a loose packing of cohesionless frictional spherical particles, while the rock shed is simplified as a layer of fixed particles. The DEM model is first validated by modeling the impact of a cubic block against a soil buffering layer. Then, it is employed to investigate the dynamic interaction between a realistic-shaped rock block and the soil buffering layer. The numerical results show that the geometry of the contact surface between the rock block and soil layer can play a significant influence on the impact force of the rock block and the force acting on the rock shed. For the tested conditions, the distribution of stress on the rock shed can be well described by the Gaussian function, which seems to be independent on the geometry of the contact surface. In addition, the simplification of realistic-shaped rock blocks as spheres in the traditional DEM modeling approaches can significantly underestimate of the impact force. The established modeling strategy serves as a starting point for investigating the rock block shape. The proposed results can contribute to the choice of buffering layer for designing the rock shed.-
dc.description.sponsorshipNational Natural Science Foundation of China (grant 51779164, 41602289 and 41877260), the open funding of the State Key Laboratory of Hydraulics and Mountain River Engineering (Sichuan University) (No. Skhl1808) and the @RockHoriZon advanced tools for rockfall hazard and risk zonation at the regional scale (Grant 2016–0756), Fondazione CARIPLO.en_US
dc.format.extent3807 - 3822-
dc.format.mediumPrint-Electronic-
dc.languageEnglish-
dc.language.isoenen_US
dc.publisherSpringer Natureen_US
dc.rightsCopyright © 2020 Springer-Nature. This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s00603-020-02116-0 (see: https://www.springernature.com/gp/open-research/policies/journal-policies).-
dc.rights.urihttps://www.springernature.com/gp/open-research/policies/journal-policies-
dc.subjectirregular rock blocken_US
dc.subjectimpacten_US
dc.subjectsoil buffering layeren_US
dc.subjectdiscrete element methoden_US
dc.subjectimpact forceen_US
dc.titleDiscrete Element Analyses of a Realistic-shaped Rock Block Impacting Against a Soil Buffering Layeren_US
dc.typeArticleen_US
dc.date.dateAccepted2020-04-07-
dc.identifier.doihttps://doi.org/10.1007/s00603-020-02116-0-
dc.relation.isPartOfRock Mechanics and Rock Engineering-
pubs.issue8-
pubs.publication-statusPublished-
pubs.volume53-
dc.identifier.eissn1434-453X-
dc.rights.holderSpringer-Nature-
Appears in Collections:Dept of Civil and Environmental Engineering Research Papers

Files in This Item:
File Description SizeFormat 
FullText.pdfCopyright © 2020 Springer-Nature. This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s00603-020-02116-0 (see: https://www.springernature.com/gp/open-research/policies/journal-policies).3.24 MBAdobe PDFView/Open


Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.