Results 171 to 180 of about 3,488 (216)

Free and Improved Computer Codes For HVSR Processing and Inversions

Symposium on the Application of Geophysics to Engineering and Environmental Problems 2018, 2018
The investigation of seismic ambient noise (microtremor) in spectral ratio form, known as HVSR, is extremely popular nowadays both to investigate large areas in a reduced amount of time, and to leverage a wider choice of low cost equipment. In general, measurements at multiple locations are collected to generate multiple HVSR curves which can ...
Bignardi, Samuel, Fiussello, Simone, Yezzi, Anthony J.   +2 more
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Soil site characterization of Rabigh city, western Saudi Arabia coastal plain, using HVSR and HVSR inversion techniques

Arabian Journal of Geosciences, 2020
Rabigh city located along the coastal plain of the Red Sea in western Saudi Arabia is economically significant. This pioneering study assesses the site characterization of Rabigh city based on integrated geological, geotechnical, and seismological data.
Abdullah M. Alamri, Abdalaziz Bankher, Kamal Abdelrahman, Mahmoud El-Hadidy, Hani Zahran   +4 more
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Statistical Analysis of Noise Horizontal-to-Vertical Spectral Ratios (HVSR)

Bulletin of the Seismological Society of America, 2005
Statistical properties of the horizontal to vertical spectral ratios (hvsr) applied to noise recording are analyzed in order to define optimal strategies for numerical processing and identification of possible artifacts. To this purpose, two time series have been analyzed: one constituted by environmental seismic noise in the presence of a genuine ...
PICOZZI M., PAROLAI S., ALBARELLO, DARIO
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Compaction evolution observed via the HVSR of microtremors

Géotechnique Letters, 2013
The non-invasive measurement of horizontal to vertical spectral ratio (HVSR) of microtremors is proposed as a means to evaluate field compaction. The HVSR technique is a surface wave method that is quite distinct from the class of array-based surface wave techniques.
Harutoonian P., Leo C. J., CASTELLARO, SILVIA, Zou J. J., Liyanapathirana D. S.   +4 more
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HVSR, Amplifications and ESAC: Some Clarifications

2020
This chapter discusses some points regarding two classical passive techniques more and more popular in seismic micro-zonation studies: the Horizontal-to-Vertical Spectral Ratio (HVSR) and the ESAC (Extended Spatial AutoCorrelation), a sort of “generalized” SPAC (SPatial AutoCorrelation).
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Seismostratigraphic Modeling Using Constrained HVSR Data

Proceedings, 2017
An application of HVSR inversion is presented in order to verify the effectiveness of this technique for purposes of reconstruction of the buried geological setting where stratigraphic constraints are available. Specifically, the reconstruction of the stratigraphy in the studied area has been obtained by a seismic-stratigraphic three-dimensional ...
R. Martorana, M. Agate, P. Capizzi, F. Cavera, A. D’Alessandro   +4 more
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Investigation of dynamically compacted ground by HVSR-based approach

Soil Dynamics and Earthquake Engineering, 2013
Abstract This paper proposes a HVSR (horizontal to vertical spectral ratio)-based approach to assess a deep and dynamically compacted fill area in Western Sydney. In addition to recognizing that the predominant resonance peak of the HVSR curve is a reflection of the impedance contrast between the surface layers and bedrock, the present paper ...
Harutoonian P., Leo C. J., Tokeshi K., Doanh T., CASTELLARO, SILVIA, Zou J. J., Liyanapathirana D. S., Wong H.   +7 more
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Analysis and Modeling of HVSR in the Presence of a Velocity Inversion: The Case of Venosa, Italy

Bulletin of the Seismological Society of America, 2005
The aim of this work is to check the stability of the horizontal-to-vertical spectral ratios (HVSRs) calculated at the Venosa station site (Italy). This site lies over a layer of anthropogenic fill (4 m thick), a rigid layer of conglomerates (15 m thick), and a thick layer of clays (about 300 m thick) above the seismic bedrock.
Di Giacomo D, Gallipoli MR, Mucciarelli M, Parolai S, Richwalski SM   +4 more
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Detecting site resonant frequency using HVSR

2020
In this investigation, we examine the uncertainties using the horizontal-to-vertical spectral ratio (HVSR) technique on earthquake recordings to detect site resonant frequencies at 207 KiK-net sites. Our results show that the scenario dependence of response (pseudospectral acceleration) spectral ratio could bias the estimates of resonant frequencies ...
Zhu, Chuanbin (Dr.), Cotton, Fabrice (Prof. Dr.), Pilz, Marco (Dr.)   +2 more
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IMPROVING THE QUALITY OF HVSR REGRESSION EQUATIONS

Geological Society of America Abstracts with Programs, 2022
Carole Johnson, Eric A White, Craig J. Brown, John Lane   +3 more
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