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Article: Quantifying topography and closure deformation of rock joints

TitleQuantifying topography and closure deformation of rock joints
Authors
KeywordsClosure deformation
Rock joints
Surface topography
Unevenness
Waviness
Issue Date2003
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijrmms
Citation
International Journal Of Rock Mechanics And Mining Sciences, 2003, v. 40 n. 2, p. 197-220 How to Cite?
AbstractThis paper presents a study for quantifying both the joint topography characteristics and the load-closure deformation of a rock joint under normal compressive loading condition. The study covers (1) laboratory measurements of rock joint surface profiles using a profilometer designed and fabricated by the research team, (2) development of a mathematical method to identify the waviness and unevenness components in joint surface profiles and the associated composite topography, (3) development of a general load-closure deformation model by using both the waviness and unevenness components in the composite topography, (4) unconfined compressive testing of rock samples with joints for the experimental load-closure deformation of joints and, (5) verification of the general load-closure deformation model by the experimental load-closure deformation results. The study leads to the following four findings: (a) the mathematical method can be used to identify the waviness and unevenness components for joint surface profiles and its composite topography. The height characteristic parameters of the complete surface topography of a joint are mainly determined by the waviness component. The texture characteristic parameters of the complete surface topography of a joint are mainly determined by the unevenness component, (b) joints can be classified into the three contact state cases using the waviness and unevenness components for both the joint surface profiles and the associated composite topography. The load-closure deformation behavior of a joint is determined by the waviness and unevenness components of the composite topography for a specific contact state, (c) the general load-closure deformation model developed in this paper is applicable to the three contact state cases. The general load-closure deformation model uses the composite topography of a joint and can take into account the effects of the contact states, the initial aperture and the waviness and unevenness components; (d) parametric studies and verifications with the uniaxial compression test results show that the general load-closure deformation model gives reasonable estimations of the load-closure deformation behavior of rock joint under compressive loading and can be reduced to those given by other researchers in the relevant literature. © 2003 Elsevier Science Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/71063
ISSN
2015 Impact Factor: 2.01
2015 SCImago Journal Rankings: 2.134
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorXia, CCen_HK
dc.contributor.authorYue, ZQen_HK
dc.contributor.authorTham, LGen_HK
dc.contributor.authorLee, CFen_HK
dc.contributor.authorSun, ZQen_HK
dc.date.accessioned2010-09-06T06:28:35Z-
dc.date.available2010-09-06T06:28:35Z-
dc.date.issued2003en_HK
dc.identifier.citationInternational Journal Of Rock Mechanics And Mining Sciences, 2003, v. 40 n. 2, p. 197-220en_HK
dc.identifier.issn1365-1609en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71063-
dc.description.abstractThis paper presents a study for quantifying both the joint topography characteristics and the load-closure deformation of a rock joint under normal compressive loading condition. The study covers (1) laboratory measurements of rock joint surface profiles using a profilometer designed and fabricated by the research team, (2) development of a mathematical method to identify the waviness and unevenness components in joint surface profiles and the associated composite topography, (3) development of a general load-closure deformation model by using both the waviness and unevenness components in the composite topography, (4) unconfined compressive testing of rock samples with joints for the experimental load-closure deformation of joints and, (5) verification of the general load-closure deformation model by the experimental load-closure deformation results. The study leads to the following four findings: (a) the mathematical method can be used to identify the waviness and unevenness components for joint surface profiles and its composite topography. The height characteristic parameters of the complete surface topography of a joint are mainly determined by the waviness component. The texture characteristic parameters of the complete surface topography of a joint are mainly determined by the unevenness component, (b) joints can be classified into the three contact state cases using the waviness and unevenness components for both the joint surface profiles and the associated composite topography. The load-closure deformation behavior of a joint is determined by the waviness and unevenness components of the composite topography for a specific contact state, (c) the general load-closure deformation model developed in this paper is applicable to the three contact state cases. The general load-closure deformation model uses the composite topography of a joint and can take into account the effects of the contact states, the initial aperture and the waviness and unevenness components; (d) parametric studies and verifications with the uniaxial compression test results show that the general load-closure deformation model gives reasonable estimations of the load-closure deformation behavior of rock joint under compressive loading and can be reduced to those given by other researchers in the relevant literature. © 2003 Elsevier Science Ltd. All rights reserved.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.subjectClosure deformationen_HK
dc.subjectRock jointsen_HK
dc.subjectSurface topographyen_HK
dc.subjectUnevennessen_HK
dc.subjectWavinessen_HK
dc.titleQuantifying topography and closure deformation of rock jointsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1365-1609&volume=40&spage=197&epage=220&date=2002&atitle=Quantifying+topography+and+closure+deformation+of+rock+jointsen_HK
dc.identifier.emailYue, ZQ: yueqzq@hku.hken_HK
dc.identifier.emailTham, LG: hrectlg@hku.hken_HK
dc.identifier.emailLee, CF: leecf@hkucc.hku.hken_HK
dc.identifier.authorityYue, ZQ=rp00209en_HK
dc.identifier.authorityTham, LG=rp00176en_HK
dc.identifier.authorityLee, CF=rp00139en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S1365-1609(02)00134-Xen_HK
dc.identifier.scopuseid_2-s2.0-0037325703en_HK
dc.identifier.hkuros76047en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037325703&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume40en_HK
dc.identifier.issue2en_HK
dc.identifier.spage197en_HK
dc.identifier.epage220en_HK
dc.identifier.isiWOS:000181723300003-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridXia, CC=8925292900en_HK
dc.identifier.scopusauthoridYue, ZQ=7102782735en_HK
dc.identifier.scopusauthoridTham, LG=7006213628en_HK
dc.identifier.scopusauthoridLee, CF=8068602600en_HK
dc.identifier.scopusauthoridSun, ZQ=16640590500en_HK

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