Abstract

A technique that analyses the horizontal-to-vertical spectral ratios (HVNR) of ambient noise recordings was tested as a tool to investigate the dynamic response of landslide prone slopes to seismic shaking. Tests were conducted in landslide areas where available accelerometer recordings allowed a comparison with amplification properties observed during earthquakes. Where accelerometer data revealed the presence of directional resonance, the HVNR technique proved to be able to recognise its presence and characteristics (orientation and frequency). The actual amplification factor does not seem to be quantifiable from the spectral ratios, whose peak amplitude values show a scattering apparently depending on changeable environmental conditions. Where site response directivity is absent, the HVNR values generally do not show a common preferential orientation of strongly directional peaks, unless, occasionally, in presence of temporary active sources of polarized noise. Thus, to avoid misinterpretations we recommend HVNR measurement repetitions at different times and under different environmental conditions.

Autore Pugliese

• Del Gaudio Vincenzo

Tutti gli autori

• DEL GAUDIO V.

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2012

ISSN

Non Disponibile

ISBN

978-0-415-63302-4

Numero di citazioni Wos

Nessuna citazione

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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