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Site characterization of Swiss Strong-Motion Stations: The benefit of advanced processing algorithms

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F21%3A00545673" target="_blank" >RIV/67985530:_____/21:00545673 - isvavai.cz</a>

  • Result on the web

    <a href="https://pubs.geoscienceworld.org/ssa/bssa/article/111/4/1713/600723/Site-Characterization-of-Swiss-Strong-Motion" target="_blank" >https://pubs.geoscienceworld.org/ssa/bssa/article/111/4/1713/600723/Site-Characterization-of-Swiss-Strong-Motion</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1785/0120200316" target="_blank" >10.1785/0120200316</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Site characterization of Swiss Strong-Motion Stations: The benefit of advanced processing algorithms

  • Original language description

    Since 2009, 91 new strong-motion stations were built for the renewal of the Swiss Strong Motion Network. Another nine stations will be installed until 2022. For each new station, an extensive site characterization study is performed to model the 1D seismic-velocity profile and, for some sites, the liquefaction potential. Geophysical (passive and active surface-wave methods) and geotechnical cone penetration test (CPT) with additional pore-pressure measurement (CPTu) and seismic CPT (SCPT) methods are used. Analyzing the passive and active recordings with a variety of established and advanced methods, the fundamental frequency of the site, the polarization of the wavefield, the Love- and Rayleigh-wave phase-velocity dispersion curves, and the Rayleigh-wave ellipticity function are retrieved. The liquefaction potential is assessed using CPTu. SCPT measurements are sometimes used to determine the shallow underground structure. The benefits of the combination of different appropriate methods are shown for two examples-the borehole station SBUS in Buochs and the upcoming borehole station SCME in Collombey-Muraz. At both the sites, the CPTu measurements show an elevated liquefaction potential. Combining the passive and active data, the dispersion curves for Love and Rayleigh waves and Rayleigh-wave ellipticity curves are retrieved over a wide-frequency range and inverted for the S-wave velocity profile, in which the shallow part is constrained by the active or SCPT data, the intermediate part by the dispersion curves of the passive methods, and the deepest part by the ellipticity information. For Buochs, the 1D SH-wave amplification functions modeled for the velocity profiles are compared with the empirical amplification for earthquake recordings. Finally, an overview of the site characterization results for 52 of the newly installed seismic stations is given.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10507 - Volcanology

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Bulletin of the Seismological Society of America

  • ISSN

    0037-1106

  • e-ISSN

    1943-3573

  • Volume of the periodical

    111

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    27

  • Pages from-to

    1713-1739

  • UT code for WoS article

    000677480700004

  • EID of the result in the Scopus database

    2-s2.0-85111973400