Opin vísindi

Combination of dispersion curves from MASW measurements

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dc.contributor Háskóli Íslands
dc.contributor University of Iceland
dc.contributor.author Ólafsdóttir, Elín Ásta
dc.contributor.author Bessason, Bjarni
dc.contributor.author Erlingsson, Sigurdur
dc.date.accessioned 2019-10-02T13:24:14Z
dc.date.available 2019-10-02T13:24:14Z
dc.date.issued 2018-10
dc.identifier.citation Olafsdottir, E. A., Bessason, B., & Erlingsson, S. (2018). Combination of dispersion curves from MASW measurements. Soil Dynamics and Earthquake Engineering, 113, 473-487. doi:https://doi.org/10.1016/j.soildyn.2018.05.025
dc.identifier.issn 0267-7261
dc.identifier.uri https://hdl.handle.net/20.500.11815/1283
dc.description Publisher's version (útgefin grein)
dc.description.abstract 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.
dc.description.sponsorship This work was supported by the University of Iceland Research Fund [Grant no. 73077]; the Icelandic Road and Coastal Administration [Grant no. 1800-373]; and the Energy Research Fund of the National Power Company of Iceland [Grant no. NYR-18-2017].
dc.format.extent 473-487
dc.language.iso en
dc.publisher Elsevier BV
dc.relation.ispartofseries Soil Dynamics and Earthquake Engineering;113
dc.rights info:eu-repo/semantics/openAccess
dc.subject Multichannel analysis of surface waves
dc.subject MASW
dc.subject Dispersion curves
dc.subject Measurement profile configuration
dc.subject Combination
dc.subject Stacking
dc.subject Uncertainty analysis
dc.subject Confidence intervals
dc.subject Bootstrap
dc.subject Jarðskjálftaverkfræði
dc.title Combination of dispersion curves from MASW measurements
dc.type info:eu-repo/semantics/article
dcterms.license This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/BY-NC-ND/4.0/).
dc.description.version Peer Reviewed
dc.identifier.journal Soil Dynamics and Earthquake Engineering
dc.identifier.doi 10.1016/j.soildyn.2018.05.025
dc.contributor.department Umhverfis- og byggingarverkfræðideild (HÍ)
dc.contributor.department Faculty of Civil and Environmental Engineering (UI)
dc.contributor.school Verkfræði- og náttúruvísindasvið (HÍ)
dc.contributor.school School of Engineering and Natural Sciences (UI)

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