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Article: A wavelet-based method to analyze CPT data for geotechnical and geo-environmental site characterization

TitleA wavelet-based method to analyze CPT data for geotechnical and geo-environmental site characterization
Authors
KeywordsCone Penetrometer Test
Cpt
Feature Extraction
Scale Effects
Site Characterization
Site Stratigraphy
Spatial Data Analysis
Subsurface Contamination
Wavelet Analysis
Issue Date1996
Citation
Astm Special Technical Publication, 1996, v. 1306, p. 456-469 How to Cite?
AbstractThe applications of cone penetration technology (CPT) in geotechnical and geo-environmental engineering are increasing due to recent advances in electronics and sensors that can be installed on the cone. However, interpretation of CPT data is a complex process and most existing methods are either empirical or semi-empirical. In order to fully utilize the capability of CPT, issues of local feature identification, uncertainty quantification, and scale effects on the interpretation of collected data have to be addressed properly. In this paper, wavelet transform and wavelet variance are used to characterize the essential scales of CPT data, and wavelet transform modulus maxima and phases are used to detect instantaneous frequency change. The scale effects of site stratigraphy determination using CPT data are demonstrated. The results indicate that this wavelet-based approach can provide a promising tool to reduce uncertainties in CPT data interpretation.
Persistent Identifierhttp://hdl.handle.net/10722/150476
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorLi, BLen_US
dc.contributor.authorYeung, ATen_US
dc.date.accessioned2012-06-26T06:05:04Z-
dc.date.available2012-06-26T06:05:04Z-
dc.date.issued1996en_US
dc.identifier.citationAstm Special Technical Publication, 1996, v. 1306, p. 456-469en_US
dc.identifier.issn1040-3094en_US
dc.identifier.urihttp://hdl.handle.net/10722/150476-
dc.description.abstractThe applications of cone penetration technology (CPT) in geotechnical and geo-environmental engineering are increasing due to recent advances in electronics and sensors that can be installed on the cone. However, interpretation of CPT data is a complex process and most existing methods are either empirical or semi-empirical. In order to fully utilize the capability of CPT, issues of local feature identification, uncertainty quantification, and scale effects on the interpretation of collected data have to be addressed properly. In this paper, wavelet transform and wavelet variance are used to characterize the essential scales of CPT data, and wavelet transform modulus maxima and phases are used to detect instantaneous frequency change. The scale effects of site stratigraphy determination using CPT data are demonstrated. The results indicate that this wavelet-based approach can provide a promising tool to reduce uncertainties in CPT data interpretation.en_US
dc.languageengen_US
dc.relation.ispartofASTM Special Technical Publicationen_US
dc.subjectCone Penetrometer Testen_US
dc.subjectCpten_US
dc.subjectFeature Extractionen_US
dc.subjectScale Effectsen_US
dc.subjectSite Characterizationen_US
dc.subjectSite Stratigraphyen_US
dc.subjectSpatial Data Analysisen_US
dc.subjectSubsurface Contaminationen_US
dc.subjectWavelet Analysisen_US
dc.titleA wavelet-based method to analyze CPT data for geotechnical and geo-environmental site characterizationen_US
dc.typeArticleen_US
dc.identifier.emailYeung, AT:yeungat@hkucc.hku.hken_US
dc.identifier.authorityYeung, AT=rp00203en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-5544226501en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-5544226501&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume1306en_US
dc.identifier.spage456en_US
dc.identifier.epage469en_US
dc.identifier.scopusauthoridLi, BL=8223895500en_US
dc.identifier.scopusauthoridYeung, AT=7102390361en_US

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