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Article: Rigid finite element method for upper bound limit analysis of soil slopes subjected to pore water pressure

TitleRigid finite element method for upper bound limit analysis of soil slopes subjected to pore water pressure
Authors
Issue Date2004
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/em.html
Citation
Journal Of Engineering Mechanics, 2004, v. 130 n. 8, p. 886-893 How to Cite?
AbstractThe traditional approach for assessing the stability of slopes is using limit equilibrium methods. Recently, many efforts have been made to utilize limit analysis methods based on the upper bound and lower bound limit theorems in plasticity. In this paper, an upper bound limit analysis method using rigid finite elements is presented. Rigid finite elements are used to discretize the slope media. Kinematically admissible velocity discontinuities are permitted to occur at all interelement boundaries. The traditional definition of factor of safety is adopted in the present method so that the results from the limit analysis can be directly compared with those from methods of slices. The presence of water can be considered through work terms in the energy-work balance equation. To do this effectively, the pore water pressure is considered as an external force, similar to gravity and surface tractions. The proposed method formulates the slope stability problem as a nonlinear optimization problem with constraints based on the yield criterion, flow rule, boundary conditions, and the energy-work balance equation. The optimization problem is solved by a sequential quadratic algorithm. Two numerical examples are presented to illustrate the validation and potential applications of the present method. © ASCE.
Persistent Identifierhttp://hdl.handle.net/10722/175577
ISSN
2015 Impact Factor: 1.346
2015 SCImago Journal Rankings: 0.747
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, Jen_US
dc.contributor.authorYin, JHen_US
dc.contributor.authorLee, CFen_US
dc.date.accessioned2012-11-26T08:59:46Z-
dc.date.available2012-11-26T08:59:46Z-
dc.date.issued2004en_US
dc.identifier.citationJournal Of Engineering Mechanics, 2004, v. 130 n. 8, p. 886-893en_US
dc.identifier.issn0733-9399en_US
dc.identifier.urihttp://hdl.handle.net/10722/175577-
dc.description.abstractThe traditional approach for assessing the stability of slopes is using limit equilibrium methods. Recently, many efforts have been made to utilize limit analysis methods based on the upper bound and lower bound limit theorems in plasticity. In this paper, an upper bound limit analysis method using rigid finite elements is presented. Rigid finite elements are used to discretize the slope media. Kinematically admissible velocity discontinuities are permitted to occur at all interelement boundaries. The traditional definition of factor of safety is adopted in the present method so that the results from the limit analysis can be directly compared with those from methods of slices. The presence of water can be considered through work terms in the energy-work balance equation. To do this effectively, the pore water pressure is considered as an external force, similar to gravity and surface tractions. The proposed method formulates the slope stability problem as a nonlinear optimization problem with constraints based on the yield criterion, flow rule, boundary conditions, and the energy-work balance equation. The optimization problem is solved by a sequential quadratic algorithm. Two numerical examples are presented to illustrate the validation and potential applications of the present method. © ASCE.en_US
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/em.htmlen_US
dc.relation.ispartofJournal of Engineering Mechanicsen_US
dc.titleRigid finite element method for upper bound limit analysis of soil slopes subjected to pore water pressureen_US
dc.typeArticleen_US
dc.identifier.emailLee, CF: leecf@hkucc.hku.hken_US
dc.identifier.authorityLee, CF=rp00139en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1061/(ASCE)0733-9399(2004)130:8(886)en_US
dc.identifier.scopuseid_2-s2.0-4043144338en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-4043144338&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume130en_US
dc.identifier.issue8en_US
dc.identifier.spage886en_US
dc.identifier.epage893en_US
dc.identifier.isiWOS:000223001200003-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChen, J=36038004400en_US
dc.identifier.scopusauthoridYin, JH=7401693397en_US
dc.identifier.scopusauthoridLee, CF=8068602600en_US

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