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Article: Failure of granite under constant loading

TitleFailure of granite under constant loading
Authors
KeywordsAcoustic emission
Constant loading test
Creep
Damage
Granite
Strength degradation
Issue Date2004
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijrmms
Citation
International Journal Of Rock Mechanics And Mining Sciences, 2004, v. 41 SUPPL. 1, p. 1A 09 1-6 How to Cite?
AbstractThe study of failure of a rock under constant loading is essential to the design and construction of excavations in the rock for mines, tunnels, and nuclear waste repositories. A series of uniaxial constant loading tests has been performed to study the deformation characteristics, damage accumulation and strength degradation of granite with time. The results show that the axial deformation remains almost constant before failure, while the lateral strain increases. The strain path plots show that the octahedral shear strain increases linearly with the mean strain indicating that tensile and shear-slip cracks develop simultaneously. By varying the stress level, it is shown that a shorter time is required to fail the rock if the stress level is higher. In this study, damage is quantified by the inelastic volumetric strain, the degradation of dynamic elastic properties, and the cumulative acoustic emission (AE) count. The results demonstrate that the cumulative AE count is a better indicator of damages. © 2004 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/71300
ISSN
2015 Impact Factor: 2.01
2015 SCImago Journal Rankings: 2.134
References

 

DC FieldValueLanguage
dc.contributor.authorLin, QXen_HK
dc.contributor.authorTham, LGen_HK
dc.contributor.authorYeung, MRen_HK
dc.contributor.authorLee, PKKen_HK
dc.date.accessioned2010-09-06T06:30:44Z-
dc.date.available2010-09-06T06:30:44Z-
dc.date.issued2004en_HK
dc.identifier.citationInternational Journal Of Rock Mechanics And Mining Sciences, 2004, v. 41 SUPPL. 1, p. 1A 09 1-6en_HK
dc.identifier.issn1365-1609en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71300-
dc.description.abstractThe study of failure of a rock under constant loading is essential to the design and construction of excavations in the rock for mines, tunnels, and nuclear waste repositories. A series of uniaxial constant loading tests has been performed to study the deformation characteristics, damage accumulation and strength degradation of granite with time. The results show that the axial deformation remains almost constant before failure, while the lateral strain increases. The strain path plots show that the octahedral shear strain increases linearly with the mean strain indicating that tensile and shear-slip cracks develop simultaneously. By varying the stress level, it is shown that a shorter time is required to fail the rock if the stress level is higher. In this study, damage is quantified by the inelastic volumetric strain, the degradation of dynamic elastic properties, and the cumulative acoustic emission (AE) count. The results demonstrate that the cumulative AE count is a better indicator of damages. © 2004 Elsevier Ltd.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijrmmsen_HK
dc.relation.ispartofInternational Journal of Rock Mechanics and Mining Sciencesen_HK
dc.subjectAcoustic emissionen_HK
dc.subjectConstant loading testen_HK
dc.subjectCreepen_HK
dc.subjectDamageen_HK
dc.subjectGraniteen_HK
dc.subjectStrength degradationen_HK
dc.titleFailure of granite under constant loadingen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1365-1609&volume=41&spage=362&epage=&date=2004&atitle=Failure+of+granite+under+constant+loadingen_HK
dc.identifier.emailTham, LG:hrectlg@hkucc.hku.hken_HK
dc.identifier.emailLee, PKK:hreclkk@hkucc.hku.hken_HK
dc.identifier.authorityTham, LG=rp00176en_HK
dc.identifier.authorityLee, PKK=rp00141en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.ijrmms.2004.03.018en_HK
dc.identifier.scopuseid_2-s2.0-3042739135en_HK
dc.identifier.hkuros93039en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-3042739135&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume41en_HK
dc.identifier.issueSUPPL. 1en_HK
dc.identifier.spage1A 09 1en_HK
dc.identifier.epage6en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLin, QX=8306303800en_HK
dc.identifier.scopusauthoridTham, LG=7006213628en_HK
dc.identifier.scopusauthoridYeung, MR=7101861686en_HK
dc.identifier.scopusauthoridLee, PKK=24522826500en_HK

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