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GEOREF RECORD

The relationship between ambient vibration H/V and SH transfer function; some experimental results

El Hadi Oubaiche, Jean-Luc Chatelain, Mustapha Hellel, Marc Wathelet, Djamel Machane, Rabah Bensalem and Abderrahmane Bouguern
The relationship between ambient vibration H/V and SH transfer function; some experimental results
Seismological Research Letters (July 2016) 87 (5): 1112-1119

Abstract

The horizontal-to-vertical spectral ratios (HVSRs) of ambient vibrations are commonly used to observe soil resonance frequencies, which are revealed by HVSR curve peaks. These resonances have been explained either in terms of S-wave transfer function or in terms of Rayleigh-wave ellipticity. In this study, ambient vibration recordings have been carried out next to nine boreholes in the eastern Mitidja basin (Algeria), all of which have been characterized by downhole geophysical surveys. Using velocity profiles obtained from the downhole surveys, we compare the frequency of the second HVSR peak (f (sub HV) ) to frequencies obtained with (1) the time-averaged velocity (f (sub T) ), (2) depth-averaged velocity (f (sub D) ), (3) the SH transfer function (f (sub SH) ), and (4) the fundamental-mode Rayleigh-wave ellipticity (f (sub E) ). We find that f (sub SH) , f (sub T) , and f (sub D) fit well with f (sub HV) , whereas this is not the case for f (sub E) , implying that the HVSR peak frequency is better explained by the SH transfer function peak than by the Rayleigh-wave ellipticity.


ISSN: 0895-0695
EISSN: 1938-2057
Serial Title: Seismological Research Letters
Serial Volume: 87
Serial Issue: 5
Title: The relationship between ambient vibration H/V and SH transfer function; some experimental results
Affiliation: Centre National de Recherche Appliquee, en Genie Parasismique, Algiers, Algeria
Pages: 1112-1119
Published: 20160713
Text Language: English
Publisher: Seismological Society of America, El Cerrito, CA, United States
Number of pages: 8
References: 45
Accession Number: 2016-073002
Categories: Seismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sketch map
N19°00'00" - N37°00'00", W09°00'00" - E12°00'00"
Secondary Affiliation: Universite Grenoble-Alpes, FRA, FranceUniversite des Sciences et de la Technologie Houari Boumedienne, DZA, AlgeriaUniversite M'Hamed Bougara de Boumerdes, DZA, Algeria
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Seismological Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201635
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