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dc.contributor.authorBHATTARAI, Pawan Kumarja
dc.contributor.authorNAKAGAWA, Hajimeja
dc.contributor.authorKAWAIKE, Kenjija
dc.contributor.authorZHANG, Haoja
dc.date.accessioned2016-04-07T02:40:33Z-
dc.date.available2016-04-07T02:40:33Z-
dc.date.issued2015-06ja
dc.identifier.issn0386-412Xja
dc.identifier.urihttp://hdl.handle.net/2433/210054-
dc.description.abstractRiver dykes is an important and effective measure to prevent floods.However, dynamic lateral widening of the breach process, resulting flow and sediment hydrographs and the scour beneath the dyke are poorly understood in current studies. Therefore, this study conducted laboratory experiments and numerical simulations of river dyke breach due to overtopping flow with different sediment sizes. The influence of sediment size of dyke materials on the breach process were discussed based on the results of the laboratory experiments, and a numerical model was developed to simulate the breach process of dykes by flow overtopping.To simulate the dyke breach phenomenon, the numerical model consisted of two-dimensional shallow-water flow, seepage flow, sediment transport and collapse model. The reproducibility of the developed model was tested using experimental data on dyke breach phenomena. The numerical results are well agreed with the results.ja
dc.format.mimetypeapplication/pdfja
dc.language.isoengja
dc.publisher京都大学防災研究所ja
dc.publisher.alternativeDisaster Prevention Research Institute Kyoto Universityja
dc.subjectRiver dykeja
dc.subjectSeepage flowja
dc.subjectLateral wideningja
dc.subjectSuctionja
dc.subjectBreach dischargeja
dc.subjectScourja
dc.subject.ndc519.9ja
dc.titleAnalysis of Breach Characteristics and Equilibrium Scour Pattern for Overtopping Induced River Dyke Breachja
dc.identifier.urlhttp://www.dpri.kyoto-u.ac.jp/nenpo/nenpo.htmlja
dc.type.niitypeDepartmental Bulletin Paperja
dc.identifier.ncidAN00027786ja
dc.identifier.jtitle京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. Bja
dc.identifier.volume58ja
dc.identifier.issueBja
dc.identifier.spage386ja
dc.identifier.epage401ja
dc.textversionpublisherja
dc.sortkey44ja
Appears in Collections:Vol.58 B

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