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Article: Particle-size distribution of interlayer shear zone material and its implications in geological processes-A case study in China

TitleParticle-size distribution of interlayer shear zone material and its implications in geological processes-A case study in China
Authors
KeywordsFractal Scaling
Geological Process
Interlayer Shear Zone
Particle-Size Distribution
Issue Date2002
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/enggeo
Citation
Engineering Geology, 2002, v. 66 n. 3-4, p. 221-232 How to Cite?
AbstractA case study was carried out at the Gaobazhou dam site on the Qingjiang River in Hubei Province, Central China, to investigate the particle-size distribution (PSD) of interlayer shear zone material and its implications in the geological processes. Forty-six disturbed samples were taken at various representative locations within the well-characterized interlayer shear zones at the Gaobazhou dam site. The particle-size distributions of these samples were analyzed, and the mass-based approach is used for fractal scaling of the particle-size distribution curves. It is shown that all curves on the log-log scale can be approximated by two intersecting lines. Thus, each curve can be quantified by α 1, α 2, P s, and r s, which respectively correspond to the slopes of the two lines and the coordinates of the point of intersection. α 1 and α 2 can be replaced by fractal dimensions D 1 and D 2. The statistical analysis results reveal that Delta (=D 2-D 1) and P s are closely related to D 1. Therefore, only D 1 and r s are used to characterize each curve. It is illustrated that 47 specimens are clustered into five groups with respect to r s and D 1. Accordingly, five categories of particle-size distributions are identified. It is found that the D 1 and r s values of a sample can reflect the geological processes of the interlayer shear zone. The larger the value of D 1, the higher the degree of interlayer shear experienced. The value of r s implies the degree of subsequent secondary geological processes, but in a rather complex way due to the differences in intensity of interlayer shear undergone. Based on this, the geological evolution processes of the interlayer shear zones are postulated, and the current status can be defined through fractal scaling of the particle-size distribution of disturbed samples. © 2002 Elsevier Science B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/175568
ISSN
2015 Impact Factor: 2.196
2015 SCImago Journal Rankings: 1.810
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorXiao, YXen_US
dc.contributor.authorLee, CFen_US
dc.contributor.authorWang, SJen_US
dc.date.accessioned2012-11-26T08:59:43Z-
dc.date.available2012-11-26T08:59:43Z-
dc.date.issued2002en_US
dc.identifier.citationEngineering Geology, 2002, v. 66 n. 3-4, p. 221-232en_US
dc.identifier.issn0013-7952en_US
dc.identifier.urihttp://hdl.handle.net/10722/175568-
dc.description.abstractA case study was carried out at the Gaobazhou dam site on the Qingjiang River in Hubei Province, Central China, to investigate the particle-size distribution (PSD) of interlayer shear zone material and its implications in the geological processes. Forty-six disturbed samples were taken at various representative locations within the well-characterized interlayer shear zones at the Gaobazhou dam site. The particle-size distributions of these samples were analyzed, and the mass-based approach is used for fractal scaling of the particle-size distribution curves. It is shown that all curves on the log-log scale can be approximated by two intersecting lines. Thus, each curve can be quantified by α 1, α 2, P s, and r s, which respectively correspond to the slopes of the two lines and the coordinates of the point of intersection. α 1 and α 2 can be replaced by fractal dimensions D 1 and D 2. The statistical analysis results reveal that Delta (=D 2-D 1) and P s are closely related to D 1. Therefore, only D 1 and r s are used to characterize each curve. It is illustrated that 47 specimens are clustered into five groups with respect to r s and D 1. Accordingly, five categories of particle-size distributions are identified. It is found that the D 1 and r s values of a sample can reflect the geological processes of the interlayer shear zone. The larger the value of D 1, the higher the degree of interlayer shear experienced. The value of r s implies the degree of subsequent secondary geological processes, but in a rather complex way due to the differences in intensity of interlayer shear undergone. Based on this, the geological evolution processes of the interlayer shear zones are postulated, and the current status can be defined through fractal scaling of the particle-size distribution of disturbed samples. © 2002 Elsevier Science B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/enggeoen_US
dc.relation.ispartofEngineering Geologyen_US
dc.rightsEngineering Geology. Copyright © Elsevier BV.-
dc.subjectFractal Scalingen_US
dc.subjectGeological Processen_US
dc.subjectInterlayer Shear Zoneen_US
dc.subjectParticle-Size Distributionen_US
dc.titleParticle-size distribution of interlayer shear zone material and its implications in geological processes-A case study in Chinaen_US
dc.typeArticleen_US
dc.identifier.emailLee, CF: leecf@hkucc.hku.hken_US
dc.identifier.authorityLee, CF=rp00139en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S0013-7952(02)00043-1en_US
dc.identifier.scopuseid_2-s2.0-0036837116en_US
dc.identifier.hkuros76087-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036837116&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume66en_US
dc.identifier.issue3-4en_US
dc.identifier.spage221en_US
dc.identifier.epage232en_US
dc.identifier.isiWOS:000178535700004-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridXiao, YX=15833730200en_US
dc.identifier.scopusauthoridLee, CF=8068602600en_US
dc.identifier.scopusauthoridWang, SJ=7410335510en_US

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