Comparison of mean shear wave velocity of the top 30 m using downhole, MASW and bender elements methods

Multichannel Analysis of Surface Waves MASW tests were performed in different seismic stations where boring information and downhole tests were available. Active MASW tests were performed using 12 geophones of 4.5 Hz of frequency repeating 5 tests in each location. From the readings, dispersion curv...

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Autores principales:	Moffat,Ricardo, Correia,Nicolle, Pastén,Cesar
Lenguaje:	English
Publicado:	Universidad Católica de la Santísima Concepción 2016
Materias:	shear wave velocity MASW downhole seismic classification
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132016000200001
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spelling	oai:scielo:S0718-281320160002000012017-01-10Comparison of mean shear wave velocity of the top 30 m using downhole, MASW and bender elements methodsMoffat,RicardoCorreia,NicollePastén,Cesar shear wave velocity MASW downhole seismic classification Multichannel Analysis of Surface Waves MASW tests were performed in different seismic stations where boring information and downhole tests were available. Active MASW tests were performed using 12 geophones of 4.5 Hz of frequency repeating 5 tests in each location. From the readings, dispersion curves were obtained using a f-k analysis with the software Geopsy. The shear wave velocity V S profiles were obtained by inverting the deduced dispersion curves. Downhole tests were analyzed using the direct approach in four stations (Maipú, Peñalolen, Casablanca and Melipilla), and using existing Vs results for Llolleo site. V S profiles obtained from MASW and downhole tests are compared and the average shear wave velocity of the top 30 m (V S30) calculated for each station. V S profiles obtained from downhole and MAS Wactive tests are similar up to 30 m. Therefore, a good testing methodology and analysis of the MASW data allows reliable results and the same seismic classification of the soil. The major differences were found where there is a large impedance of two layers of soils such as it was found in Melipilla site.info:eu-repo/semantics/openAccessUniversidad Católica de la Santísima ConcepciónObras y proyectos n.20 20162016-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132016000200001en10.4067/S0718-28132016000200001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	shear wave velocity MASW downhole seismic classification
spellingShingle	shear wave velocity MASW downhole seismic classification Moffat,Ricardo Correia,Nicolle Pastén,Cesar Comparison of mean shear wave velocity of the top 30 m using downhole, MASW and bender elements methods
description	Multichannel Analysis of Surface Waves MASW tests were performed in different seismic stations where boring information and downhole tests were available. Active MASW tests were performed using 12 geophones of 4.5 Hz of frequency repeating 5 tests in each location. From the readings, dispersion curves were obtained using a f-k analysis with the software Geopsy. The shear wave velocity V S profiles were obtained by inverting the deduced dispersion curves. Downhole tests were analyzed using the direct approach in four stations (Maipú, Peñalolen, Casablanca and Melipilla), and using existing Vs results for Llolleo site. V S profiles obtained from MASW and downhole tests are compared and the average shear wave velocity of the top 30 m (V S30) calculated for each station. V S profiles obtained from downhole and MAS Wactive tests are similar up to 30 m. Therefore, a good testing methodology and analysis of the MASW data allows reliable results and the same seismic classification of the soil. The major differences were found where there is a large impedance of two layers of soils such as it was found in Melipilla site.
author	Moffat,Ricardo Correia,Nicolle Pastén,Cesar
author_facet	Moffat,Ricardo Correia,Nicolle Pastén,Cesar
author_sort	Moffat,Ricardo
title	Comparison of mean shear wave velocity of the top 30 m using downhole, MASW and bender elements methods
title_short	Comparison of mean shear wave velocity of the top 30 m using downhole, MASW and bender elements methods
title_full	Comparison of mean shear wave velocity of the top 30 m using downhole, MASW and bender elements methods
title_fullStr	Comparison of mean shear wave velocity of the top 30 m using downhole, MASW and bender elements methods
title_full_unstemmed	Comparison of mean shear wave velocity of the top 30 m using downhole, MASW and bender elements methods
title_sort	comparison of mean shear wave velocity of the top 30 m using downhole, masw and bender elements methods
publisher	Universidad Católica de la Santísima Concepción
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132016000200001
work_keys_str_mv	AT moffatricardo comparisonofmeanshearwavevelocityofthetop30musingdownholemaswandbenderelementsmethods AT correianicolle comparisonofmeanshearwavevelocityofthetop30musingdownholemaswandbenderelementsmethods AT pastencesar comparisonofmeanshearwavevelocityofthetop30musingdownholemaswandbenderelementsmethods
_version_	1714203339058577408

Comparison of mean shear wave velocity of the top 30 m using downhole, MASW and bender elements methods

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