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Article: Underground rockfall stability analysis using the numerical manifold method

TitleUnderground rockfall stability analysis using the numerical manifold method
Authors
KeywordsShotcrete
Rockfall
Layered rock
XFEM
Rockbolt
Rockbolt reinforcement
Numerical manifold method
Issue Date2014
Citation
Advances in Engineering Software, 2014, v. 76, p. 69-85 How to Cite?
AbstractThe present study applies the numerical manifold method (NMM) as a tool to investigate the rockfall hazard in underground engineering. The crack evolution technique with crack initiation and propagation criterion, which has been successfully applied to handle cracking problems in rocks, is used in this study. A rockbolt element is introduced, which is first validated by a simple case. The mechanism of the rockbolt in reinforcing a layered rock mass is then investigated through a four-layered rock beam example. The developed NMM is then used to investigate the rockfall instability caused by either natural joints or mining induced fractures in an underground power station house or a tunnel. The results illustrate that the developed NMM can not only capture the entire dynamic process of the rockfall but also locate the keyblock successfully. As such, corresponding reinforcement methods can be chosen reasonably. © 2014 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/214039
ISSN
2015 Impact Factor: 1.673
2015 SCImago Journal Rankings: 0.812

 

DC FieldValueLanguage
dc.contributor.authorWu, Zhijun-
dc.contributor.authorWong, Louis Ngai Yuen-
dc.date.accessioned2015-08-19T13:41:37Z-
dc.date.available2015-08-19T13:41:37Z-
dc.date.issued2014-
dc.identifier.citationAdvances in Engineering Software, 2014, v. 76, p. 69-85-
dc.identifier.issn0965-9978-
dc.identifier.urihttp://hdl.handle.net/10722/214039-
dc.description.abstractThe present study applies the numerical manifold method (NMM) as a tool to investigate the rockfall hazard in underground engineering. The crack evolution technique with crack initiation and propagation criterion, which has been successfully applied to handle cracking problems in rocks, is used in this study. A rockbolt element is introduced, which is first validated by a simple case. The mechanism of the rockbolt in reinforcing a layered rock mass is then investigated through a four-layered rock beam example. The developed NMM is then used to investigate the rockfall instability caused by either natural joints or mining induced fractures in an underground power station house or a tunnel. The results illustrate that the developed NMM can not only capture the entire dynamic process of the rockfall but also locate the keyblock successfully. As such, corresponding reinforcement methods can be chosen reasonably. © 2014 Elsevier Ltd. All rights reserved.-
dc.languageeng-
dc.relation.ispartofAdvances in Engineering Software-
dc.subjectShotcrete-
dc.subjectRockfall-
dc.subjectLayered rock-
dc.subjectXFEM-
dc.subjectRockbolt-
dc.subjectRockbolt reinforcement-
dc.subjectNumerical manifold method-
dc.titleUnderground rockfall stability analysis using the numerical manifold method-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.advengsoft.2014.06.001-
dc.identifier.scopuseid_2-s2.0-84903711574-
dc.identifier.hkuros259201-
dc.identifier.volume76-
dc.identifier.spage69-
dc.identifier.epage85-
dc.identifier.eissn1873-5339-

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