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Combination of dispersion curves from MASW measurements
University of Iceland.
University of Iceland.
Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology. University of Iceland.ORCID iD: 0000-0002-4256-3034
2018 (English)In: Soil Dynamics and Earthquake Engineering, ISSN 0267-7261, E-ISSN 1879-341X, Vol. 113, p. 473-487Article in journal (Refereed) Published
Abstract [en]

Multichannel analysis of surface waves (MASW) is a seismic exploration method for determination of near-surface shear wave velocity profiles based on analysis of horizontally travelling Rayleigh waves. This paper aims to propose a methodology and recommendations for combining dispersion data from several multichannel records. The dispersion curves are added up within logarithmically spaced wavelength intervals and the uncertainty of the mean phase velocity estimates is evaluated by using classical statistics and the bootstrap. The results indicate that combining multiple dispersion curves, which have been gathered by receiver spreads of different lengths (but with the same midpoint), can increase the investigation depth of the survey, improve its resolution at shallow depth and overall improve the reliability of the results as compared to the use of a single record. Moreover, the uncertainty of the combined mean dispersion curve can be determined and further used to present the shear wave velocity profile with upper and lower boundaries.

Place, publisher, year, edition, pages
Elsevier Ltd , 2018. Vol. 113, p. 473-487
Keywords [en]
Seismic, Measurement, Method, Soil
National Category
Geophysics
Research subject
60 Road: Soil and geotechnics, 62 Road: Soil mechanics
Identifiers
URN: urn:nbn:se:vti:diva-13168DOI: 10.1016/j.soildyn.2018.05.025Scopus ID: 2-s2.0-85049325893OAI: oai:DiVA.org:vti-13168DiVA, id: diva2:1246797
Available from: 2018-09-10 Created: 2018-09-10 Last updated: 2018-11-19Bibliographically approved

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Erlingsson, Sigurdur

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  • de-DE
  • en-GB
  • en-US
  • fi-FI
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  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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