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Article: Laboratory studies of two common saprolitic soils in Hong Kong

TitleLaboratory studies of two common saprolitic soils in Hong Kong
Authors
KeywordsBonding
Hong Kong
Laboratory Tests
Residual Soils
Triaxial Compression
Issue Date2006
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/gt.html
Citation
Journal Of Geotechnical And Geoenvironmental Engineering, 2006, v. 132 n. 7, p. 923-930 How to Cite?
AbstractTwo commonly encountered saprolitic soils in Hong Kong, weathered volcanic tuff (WT) and weathered granite (WG), were studied using high-quality intact samples. The intact samples exhibited quasi-preconsolidation pressure or yield stress under isotropic compression due to their bonded structures, but the yield was progressive and not abrupt. As the stress increased, significant volumetric changes were measured. These changes resembled clay-type behavior. The soils also exhibited anisotropic deformation under isotropic loading and unloading, which was associated with the features of their parent rocks. During the drained tests, shearing at the in situ stress-state produced peak strength and volumetric dilation. Undrained shearing showed complicated stress paths and dilatancy behavior in these soils. Phase transformation states and dilative shear failure were readily seen, which resembles typical sand-type behavior. Distinct shear band(s) appeared in the WT specimens during shearing, whereas a bulging type of failure appeared in the WG specimens. The soils ultimately approached the corresponding state guided by a unique critical state line, regardless of their complex initial states in relation to the bonded structure and drainage conditions. © 2006 ASCE.
Persistent Identifierhttp://hdl.handle.net/10722/150362
ISSN
2015 Impact Factor: 1.696
2015 SCImago Journal Rankings: 2.344
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWang, YHen_US
dc.contributor.authorYan, WMen_US
dc.date.accessioned2012-06-26T06:03:53Z-
dc.date.available2012-06-26T06:03:53Z-
dc.date.issued2006en_US
dc.identifier.citationJournal Of Geotechnical And Geoenvironmental Engineering, 2006, v. 132 n. 7, p. 923-930en_US
dc.identifier.issn1090-0241en_US
dc.identifier.urihttp://hdl.handle.net/10722/150362-
dc.description.abstractTwo commonly encountered saprolitic soils in Hong Kong, weathered volcanic tuff (WT) and weathered granite (WG), were studied using high-quality intact samples. The intact samples exhibited quasi-preconsolidation pressure or yield stress under isotropic compression due to their bonded structures, but the yield was progressive and not abrupt. As the stress increased, significant volumetric changes were measured. These changes resembled clay-type behavior. The soils also exhibited anisotropic deformation under isotropic loading and unloading, which was associated with the features of their parent rocks. During the drained tests, shearing at the in situ stress-state produced peak strength and volumetric dilation. Undrained shearing showed complicated stress paths and dilatancy behavior in these soils. Phase transformation states and dilative shear failure were readily seen, which resembles typical sand-type behavior. Distinct shear band(s) appeared in the WT specimens during shearing, whereas a bulging type of failure appeared in the WG specimens. The soils ultimately approached the corresponding state guided by a unique critical state line, regardless of their complex initial states in relation to the bonded structure and drainage conditions. © 2006 ASCE.en_US
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/gt.htmlen_US
dc.relation.ispartofJournal of Geotechnical and Geoenvironmental Engineeringen_US
dc.subjectBondingen_US
dc.subjectHong Kongen_US
dc.subjectLaboratory Testsen_US
dc.subjectResidual Soilsen_US
dc.subjectTriaxial Compressionen_US
dc.titleLaboratory studies of two common saprolitic soils in Hong Kongen_US
dc.typeArticleen_US
dc.identifier.emailYan, WM:ryanyan@hku.hken_US
dc.identifier.authorityYan, WM=rp01400en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1061/(ASCE)1090-0241(2006)132:7(923)en_US
dc.identifier.scopuseid_2-s2.0-33745267238en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33745267238&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume132en_US
dc.identifier.issue7en_US
dc.identifier.spage923en_US
dc.identifier.epage930en_US
dc.identifier.isiWOS:000238429500011-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridWang, YH=7601486517en_US
dc.identifier.scopusauthoridYan, WM=35369531200en_US

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