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Article: A dynamic model for rainfall-induced landslides on natural slopes

TitleA dynamic model for rainfall-induced landslides on natural slopes
Authors
KeywordsLagrangian finite element
Potential hazard
Rainfall-induced landslide
Runout behaviour
Voellmy rheology
Issue Date2003
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/geomorph
Citation
Geomorphology, 2003, v. 51 n. 4, p. 269-288 How to Cite?
AbstractAssessment of landslide hazard often requires a good knowledge of the landslide characteristics and runout mechanics. In this paper, a quasi-three-dimensional model using Lagrangian finite element method (LFEM) is formulated to reproduce the dynamic runout process caused by landslides. A case study of rainfall-induced landslide on a natural slope in 1993 in Lantau Island, Hong Kong, is presented. Voellmy rheology is adopted to characterize the multi-dimensional runout behaviour. For engineering applications, the selection of appropriate rheology and the determination of relevant key parameters associated with the failure mechanisms and runout mechanics are highlighted. Details of the mathematical formulation, particularly with respect to the stability of the numerical scheme and quality control of the mesh, are provided. The close correlation between the calculation results and the field observations shows that, if an appropriate rheological relationship is selected for the simulation, a reasonable description of the runout behaviour can be obtained using the present model. Implications of the potential hazard from natural terrain landslides to downslope development are also discussed. Used in conjunction with Geographical Information System (GIS) database, the model can also be applied to the preliminary hazard zoning of terrain and land-use management in mountainous areas. © 2002 Elsevier Science B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/71511
ISSN
2015 Impact Factor: 2.813
2015 SCImago Journal Rankings: 1.441
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, Hen_HK
dc.contributor.authorLee, CFen_HK
dc.date.accessioned2010-09-06T06:32:39Z-
dc.date.available2010-09-06T06:32:39Z-
dc.date.issued2003en_HK
dc.identifier.citationGeomorphology, 2003, v. 51 n. 4, p. 269-288en_HK
dc.identifier.issn0169-555Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/71511-
dc.description.abstractAssessment of landslide hazard often requires a good knowledge of the landslide characteristics and runout mechanics. In this paper, a quasi-three-dimensional model using Lagrangian finite element method (LFEM) is formulated to reproduce the dynamic runout process caused by landslides. A case study of rainfall-induced landslide on a natural slope in 1993 in Lantau Island, Hong Kong, is presented. Voellmy rheology is adopted to characterize the multi-dimensional runout behaviour. For engineering applications, the selection of appropriate rheology and the determination of relevant key parameters associated with the failure mechanisms and runout mechanics are highlighted. Details of the mathematical formulation, particularly with respect to the stability of the numerical scheme and quality control of the mesh, are provided. The close correlation between the calculation results and the field observations shows that, if an appropriate rheological relationship is selected for the simulation, a reasonable description of the runout behaviour can be obtained using the present model. Implications of the potential hazard from natural terrain landslides to downslope development are also discussed. Used in conjunction with Geographical Information System (GIS) database, the model can also be applied to the preliminary hazard zoning of terrain and land-use management in mountainous areas. © 2002 Elsevier Science B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/geomorphen_HK
dc.relation.ispartofGeomorphologyen_HK
dc.rightsGeomorphology. Copyright © Elsevier BV.en_HK
dc.subjectLagrangian finite elementen_HK
dc.subjectPotential hazarden_HK
dc.subjectRainfall-induced landslideen_HK
dc.subjectRunout behaviouren_HK
dc.subjectVoellmy rheologyen_HK
dc.titleA dynamic model for rainfall-induced landslides on natural slopesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0169-555X&volume=51&issue=4&spage=269&epage=288&date=2003&atitle=A+dynamic+model+for+rainfall-induced+landslides+on+natural+slopesen_HK
dc.identifier.emailLee, CF: leecf@hkucc.hku.hken_HK
dc.identifier.authorityLee, CF=rp00139en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0169-555X(02)00224-6en_HK
dc.identifier.scopuseid_2-s2.0-0037466567en_HK
dc.identifier.hkuros76086en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037466567&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume51en_HK
dc.identifier.issue4en_HK
dc.identifier.spage269en_HK
dc.identifier.epage288en_HK
dc.identifier.isiWOS:000182748000003-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridChen, H=7501625581en_HK
dc.identifier.scopusauthoridLee, CF=8068602600en_HK

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