Geophysical surveys for the characterization of the seismic local response at instrumented sites : a case study from a station of the Swiss strong motion network

Bergamo, Paolo; Panzera, Francesco; Hobiger, Manuel; Michel, Clotaire; Fäh, Donat

doi:10.21256/zhaw-26918

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-26918

Publication type:	Conference paper
Type of review:	No review
Title:	Geophysical surveys for the characterization of the seismic local response at instrumented sites : a case study from a station of the Swiss strong motion network
Authors:	Bergamo, Paolo Panzera, Francesco Hobiger, Manuel Michel, Clotaire Fäh, Donat
et. al:	No
DOI:	10.21256/zhaw-26918
Proceedings:	Proceedings of the Third European Conference on Earthquake Engineering and Seismology (3ECEES)
Editors of the parent work:	Arion, Cristian Scupin, Alexandra Ţigănescu, Alexandru
Page(s):	4765
Pages to:	4774
Conference details:	3rd European Conference on Earthquake Engineering and Seismology (3ECEES 2022), Bucharest, Romania, 4-9 September 2022
Issue Date:	Sep-2022
Publisher / Ed. Institution:	Editura Conspress
ISBN:	978-973-100-533-1
Language:	English
Subjects:	Seismic site response; Geophysical survey; Wavefield decomposition; Strong-motion station; Empirical spectral modelling
Subject (DDC):	551: Geology and hydrology
Abstract:	Site characterization surveying is one of the key efforts for the understanding of local amplification effects in earthquake engineering. In this perspective, geophysical measurements for the estimation of the physical properties of the subsurface at instrumented sites are particularly important. For instance, the comparison between simulated site amplification based on the retrieved Vs profile and empirical local response observed at the station allows assessing whether the site is characterized by a purely 1D response or additional 2D-3D effects are present. We present a case study involving a site characterization measurement at a station of the Swiss strong-motion network. The survey includes active seismic data acquisition along two geophone lines, of 15 and 115 m length, for the imaging of the near-surface and deeper layers, respectively. The acquired data were interpreted in terms of P-wave refraction and Rayleigh-wave multi-modal propagation analysis. The reconstructed Vs-Vp profiles achieve a high level of accuracy over a wide depth range and allow modelling the SH-transfer function of the local soil column; the latter is in excellent agreement with the local amplification function estimated by means of empirical spectral modelling of the station’s recordings. The agreement confirms a purely 1D site response for the surveyed station.
URI:	https://digitalcollection.zhaw.ch/handle/11475/26918
Fulltext version:	Published version
License (according to publishing contract):	Not specified
Departement:	School of Engineering
Organisational Unit:	Institute of Sustainable Development (INE)
Appears in collections:	Publikationen School of Engineering

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Bergamo, P., Panzera, F., Hobiger, M., Michel, C., & Fäh, D. (2022). Geophysical surveys for the characterization of the seismic local response at instrumented sites : a case study from a station of the Swiss strong motion network [Conference paper]. In C. Arion, A. Scupin, & A. Ţigănescu (Eds.), Proceedings of the Third European Conference on Earthquake Engineering and Seismology (3ECEES) (pp. 4765–4774). Editura Conspress. https://doi.org/10.21256/zhaw-26918

Bergamo, P. et al. (2022) ‘Geophysical surveys for the characterization of the seismic local response at instrumented sites : a case study from a station of the Swiss strong motion network’, in C. Arion, A. Scupin, and A. Ţigănescu (eds) Proceedings of the Third European Conference on Earthquake Engineering and Seismology (3ECEES). Editura Conspress, pp. 4765–4774. Available at: https://doi.org/10.21256/zhaw-26918.

P. Bergamo, F. Panzera, M. Hobiger, C. Michel, and D. Fäh, “Geophysical surveys for the characterization of the seismic local response at instrumented sites : a case study from a station of the Swiss strong motion network,” in Proceedings of the Third European Conference on Earthquake Engineering and Seismology (3ECEES), Sep. 2022, pp. 4765–4774. doi: 10.21256/zhaw-26918.

BERGAMO, Paolo, Francesco PANZERA, Manuel HOBIGER, Clotaire MICHEL und Donat FÄH, 2022. Geophysical surveys for the characterization of the seismic local response at instrumented sites : a case study from a station of the Swiss strong motion network. In: Cristian ARION, Alexandra SCUPIN und Alexandru ŢIGĂNESCU (Hrsg.), Proceedings of the Third European Conference on Earthquake Engineering and Seismology (3ECEES). Conference paper. Editura Conspress. September 2022. S. 4765–4774. ISBN 978-973-100-533-1

Bergamo, Paolo, Francesco Panzera, Manuel Hobiger, Clotaire Michel, and Donat Fäh. 2022. “Geophysical Surveys for the Characterization of the Seismic Local Response at Instrumented Sites : A Case Study from a Station of the Swiss Strong Motion Network.” Conference paper. In Proceedings of the Third European Conference on Earthquake Engineering and Seismology (3ECEES), edited by Cristian Arion, Alexandra Scupin, and Alexandru Ţigănescu, 4765–74. Editura Conspress. https://doi.org/10.21256/zhaw-26918.

Bergamo, Paolo, et al. “Geophysical Surveys for the Characterization of the Seismic Local Response at Instrumented Sites : A Case Study from a Station of the Swiss Strong Motion Network.” Proceedings of the Third European Conference on Earthquake Engineering and Seismology (3ECEES), edited by Cristian Arion et al., Editura Conspress, 2022, pp. 4765–74, https://doi.org/10.21256/zhaw-26918.