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Article: Study on crack coalescence process under loading and hydraulic pressures

TitleStudy on crack coalescence process under loading and hydraulic pressures
Authors
KeywordsCrack Coalescence
F-Rfpa2d System
Heterogeneity
Hydraulic Pressures
Permeability
Rock Mechanics
Issue Date2005
Citation
Yanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2005, v. 24 SUPPL., p. 5026-5030 How to Cite?
AbstractThe coupling action of seepage and fracture on crack coalescence process under loading and hydraulic pressures are investigated. Numerical results demonstrate that the trend and magnitude of the permeability variations are controlled by the stress and the damage evolution developed in rocks. This includes the induced stress evolution of flow properties, and the regions of both diminished and enhanced flow depending on which the rock is in the linear-elastic, nonlinear, or post-failure portions of the stress-strain curves are presented. In elastic deformation region, rock permeability reduces when the rock compacts, and the decrease rate of the permeability starts to slow down or gradually to increase again when micro fractures begin to nucleate. Dramatic permeability increase occurs as soon as the macro-fracture forms in the rock.
Persistent Identifierhttp://hdl.handle.net/10722/150316
ISSN
2015 SCImago Journal Rankings: 1.073
References

 

DC FieldValueLanguage
dc.contributor.authorYang, THen_US
dc.contributor.authorYu, QLen_US
dc.contributor.authorWang, SYen_US
dc.contributor.authorLiang, ZZen_US
dc.contributor.authorTang, CAen_US
dc.contributor.authorTham, LGen_US
dc.date.accessioned2012-06-26T06:03:15Z-
dc.date.available2012-06-26T06:03:15Z-
dc.date.issued2005en_US
dc.identifier.citationYanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2005, v. 24 SUPPL., p. 5026-5030en_US
dc.identifier.issn1000-6915en_US
dc.identifier.urihttp://hdl.handle.net/10722/150316-
dc.description.abstractThe coupling action of seepage and fracture on crack coalescence process under loading and hydraulic pressures are investigated. Numerical results demonstrate that the trend and magnitude of the permeability variations are controlled by the stress and the damage evolution developed in rocks. This includes the induced stress evolution of flow properties, and the regions of both diminished and enhanced flow depending on which the rock is in the linear-elastic, nonlinear, or post-failure portions of the stress-strain curves are presented. In elastic deformation region, rock permeability reduces when the rock compacts, and the decrease rate of the permeability starts to slow down or gradually to increase again when micro fractures begin to nucleate. Dramatic permeability increase occurs as soon as the macro-fracture forms in the rock.en_US
dc.languageengen_US
dc.relation.ispartofYanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineeringen_US
dc.subjectCrack Coalescenceen_US
dc.subjectF-Rfpa2d Systemen_US
dc.subjectHeterogeneityen_US
dc.subjectHydraulic Pressuresen_US
dc.subjectPermeabilityen_US
dc.subjectRock Mechanicsen_US
dc.titleStudy on crack coalescence process under loading and hydraulic pressuresen_US
dc.typeArticleen_US
dc.identifier.emailTham, LG:hrectlg@hkucc.hku.hken_US
dc.identifier.authorityTham, LG=rp00176en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-24344504805en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-24344504805&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume24en_US
dc.identifier.issueSUPPL.en_US
dc.identifier.spage5026en_US
dc.identifier.epage5030en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridYang, TH=7404656308en_US
dc.identifier.scopusauthoridYu, QL=8652895700en_US
dc.identifier.scopusauthoridWang, SY=7410342176en_US
dc.identifier.scopusauthoridLiang, ZZ=7402178194en_US
dc.identifier.scopusauthoridTang, CA=7404394097en_US
dc.identifier.scopusauthoridTham, LG=7006213628en_US

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