Difficulties with phase spectrum unwrapping in spectral analysis of surface waves nondestructive testing of pavements

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DOIResolve DOI: http://doi.org/10.1139/t92-055
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TypeArticle
Journal titleCanadian Geotechnical Journal
ISSN0008-3674
Volume29
Issue3
Pages506511; # of pages: 6
SubjectPavements; Roads
AbstractThis paper presents the results of a case study for near-surface profiling of a pavement site using the SASW method. In this study, inconsistencies were observed in the dispersion curve of the site when the usual procedure of unfolding the relative phase spectrum was followed. A correction procedure to eliminate these inconsistencies is suggested and discussed. The thickness and wave velocities of the various layers obtained with the SASW method, after applying the correction procedure, matched closely those determined from cored samples and crosshole tests.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierIRC-P-1925
NRC number34150
2402
NPARC number20374212
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Record identifierdcb96730-6dba-49b6-9649-e4877538bab5
Record created2012-07-23
Record modified2016-05-09
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