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Article: Frequency-dependent amplification of unsaturated surface soil layer

TitleFrequency-dependent amplification of unsaturated surface soil layer
Authors
KeywordsAmplification
Frequency
Ground motion
Layered soils
Seismic effects
Site evaluation
Unsaturated soils
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. 4, p. 526-531 How to Cite?
AbstractThis paper presents a study of the amplification of SV waves obliquely incident on a surface soil layer overlying rock formation. Special attention is placed on the influence of the saturation states of the soil layer and the bedrock on the amplification in both horizontal and vertical directions as well as on the amplitude ratios between the two directions at the surface, where the vertical and horizontal amplification and the amplitude ratios are expressed as functions of the frequency of incident waves. The analysis indicates that while the influence of the saturation state of the bedrock is insignificant, a change of the saturation state of the soil layer may have a marked impact on the vertical amplification. For typical seismic frequencies, an unsaturated soil layer can generate greater vertical amplification than a saturated layer; it can also cause larger amplitude ratios between vertical and horizontal components at the surface. The analysis further confirms the potential importance of the saturation condition of near-surface soils in site response analysis. © 2006 ASCE.
Persistent Identifierhttp://hdl.handle.net/10722/71803
ISSN
2015 Impact Factor: 1.696
2015 SCImago Journal Rankings: 2.344
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYang, Jen_HK
dc.date.accessioned2010-09-06T06:35:18Z-
dc.date.available2010-09-06T06:35:18Z-
dc.date.issued2006en_HK
dc.identifier.citationJournal Of Geotechnical And Geoenvironmental Engineering, 2006, v. 132 n. 4, p. 526-531en_HK
dc.identifier.issn1090-0241en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71803-
dc.description.abstractThis paper presents a study of the amplification of SV waves obliquely incident on a surface soil layer overlying rock formation. Special attention is placed on the influence of the saturation states of the soil layer and the bedrock on the amplification in both horizontal and vertical directions as well as on the amplitude ratios between the two directions at the surface, where the vertical and horizontal amplification and the amplitude ratios are expressed as functions of the frequency of incident waves. The analysis indicates that while the influence of the saturation state of the bedrock is insignificant, a change of the saturation state of the soil layer may have a marked impact on the vertical amplification. For typical seismic frequencies, an unsaturated soil layer can generate greater vertical amplification than a saturated layer; it can also cause larger amplitude ratios between vertical and horizontal components at the surface. The analysis further confirms the potential importance of the saturation condition of near-surface soils in site response analysis. © 2006 ASCE.en_HK
dc.languageengen_HK
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/gt.htmlen_HK
dc.relation.ispartofJournal of Geotechnical and Geoenvironmental Engineeringen_HK
dc.rightsJournal of Geotechnical and Geoenvironmental Engineering. Copyright © American Society of Civil Engineers.en_HK
dc.subjectAmplificationen_HK
dc.subjectFrequencyen_HK
dc.subjectGround motionen_HK
dc.subjectLayered soilsen_HK
dc.subjectSeismic effectsen_HK
dc.subjectSite evaluationen_HK
dc.subjectUnsaturated soilsen_HK
dc.titleFrequency-dependent amplification of unsaturated surface soil layeren_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1090-0241&volume=132&issue=4&spage=526&epage=531&date=2006&atitle=Frequency-dependent+amplification+of+unsaturated+surface+soil+layeren_HK
dc.identifier.emailYang, J:junyang@hkucc.hku.hken_HK
dc.identifier.authorityYang, J=rp00201en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1061/(ASCE)1090-0241(2006)132:4(526)en_HK
dc.identifier.scopuseid_2-s2.0-33745033865en_HK
dc.identifier.hkuros115786en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33745033865&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume132en_HK
dc.identifier.issue4en_HK
dc.identifier.spage526en_HK
dc.identifier.epage531en_HK
dc.identifier.isiWOS:000236235000011-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYang, J=35605258800en_HK

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