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Article: Application of the numerical manifold method to model progressive failure in rock slopes

TitleApplication of the numerical manifold method to model progressive failure in rock slopes
Authors
KeywordsProgressive failure
Crack evolution technique
Crack initiation criterion
Rock slope
Factor of safety
Numerical manifold method
Partition of unity method
Issue Date2014
Citation
Engineering Fracture Mechanics, 2014, v. 119, p. 1-20 How to Cite?
AbstractThe present study develops the numerical manifold method as a tool to investigate the progressive failure in rock slopes. The entire processes of the progressive slide surface development related to crack initiation, propagation, coalescence and degradation to eventual catastrophic failure are successfully captured. To overcome the limitation of the original NMM associated with an improper removal of the interface cohesion of the discontinuities, the displacement-dependent cohesion removal method is adopted. Simple examples of failure of rock slopes containing different arrangements of discontinuities are modeled and their results are compared with those based on the popular limit equilibrium method proposed by famous pioneers Jennings (1970) [1] and Jaeger (1971) [2]. The present results illustrate that the types of crack propagation and coalescence obtained by the developed NMM can help explain the relevant cracking processes in nature and experimental studies. © 2014 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/214036
ISSN
2015 Impact Factor: 2.024
2015 SCImago Journal Rankings: 1.423

 

DC FieldValueLanguage
dc.contributor.authorWong, Louis Ngai Yuen-
dc.contributor.authorWu, Zhijun-
dc.date.accessioned2015-08-19T13:41:37Z-
dc.date.available2015-08-19T13:41:37Z-
dc.date.issued2014-
dc.identifier.citationEngineering Fracture Mechanics, 2014, v. 119, p. 1-20-
dc.identifier.issn0013-7944-
dc.identifier.urihttp://hdl.handle.net/10722/214036-
dc.description.abstractThe present study develops the numerical manifold method as a tool to investigate the progressive failure in rock slopes. The entire processes of the progressive slide surface development related to crack initiation, propagation, coalescence and degradation to eventual catastrophic failure are successfully captured. To overcome the limitation of the original NMM associated with an improper removal of the interface cohesion of the discontinuities, the displacement-dependent cohesion removal method is adopted. Simple examples of failure of rock slopes containing different arrangements of discontinuities are modeled and their results are compared with those based on the popular limit equilibrium method proposed by famous pioneers Jennings (1970) [1] and Jaeger (1971) [2]. The present results illustrate that the types of crack propagation and coalescence obtained by the developed NMM can help explain the relevant cracking processes in nature and experimental studies. © 2014 Elsevier Ltd.-
dc.languageeng-
dc.relation.ispartofEngineering Fracture Mechanics-
dc.subjectProgressive failure-
dc.subjectCrack evolution technique-
dc.subjectCrack initiation criterion-
dc.subjectRock slope-
dc.subjectFactor of safety-
dc.subjectNumerical manifold method-
dc.subjectPartition of unity method-
dc.titleApplication of the numerical manifold method to model progressive failure in rock slopes-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.engfracmech.2014.02.022-
dc.identifier.scopuseid_2-s2.0-84897546735-
dc.identifier.hkuros259205-
dc.identifier.volume119-
dc.identifier.spage1-
dc.identifier.epage20-

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