Shear-wave velocity profiles and their relationship with empirical amplification functions
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Author / Producer
Date
2022-09
Publication Type
Conference Paper
ETH Bibliography
yes
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Abstract
From a one-dimensional shear-wave velocity profile, the quarter-wavelength approach allows computing travel-time averaged parameters such as velocity and impedance contrast. The advantage of such a procedure is the possibility of relating the averaging depth to a specific wavelength, thus making the result frequency-dependent. In this study we converted a set of velocity profiles into its quarter-wavelength representation. Results are then correlated with empirical amplification functions. For this purpose, we use a database of empirical amplification functions and shear wave profiles of the Swiss seismic network. We demonstrate that quarter-wavelength parameters can be used as proxy for seismic site characterization of rock and soft sediment sites and to derive site-dependent amplification functions.
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Publication status
published
External links
Book title
Proceedings of the Third European Conference on Earthquake Engineering and Seismology – 3ECEES
Journal / series
Volume
Pages / Article No.
4636 - 4639
Publisher
Editura Conspress
Event
3rd European Conference on Earthquake Engineering and Seismology (3ECEES 2022)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
shear wave velocity; subsoil structure; site amplification; quarter-wavelength
Organisational unit
02818 - Schweiz. Erdbebendienst (SED) / Swiss Seismological Service (SED)