Seismic velocity determination in gravel and sands using piezocrystals

The exact determination of seismic waves' propagation velocities has great importance in the geotechnics due to from that it is possible to determine, among other parameters, the dynamic ones: Elasticity E, Rigidity G, Poisson !, compressibility B; as well as to reach a knowledge on the stress-...

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Autores:
Imhof, Luis Armando
Santamarina, Juan Carlos
Tipo de recurso:
Article of journal
Fecha de publicación:
2008
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/34005
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/34005
http://bdigital.unal.edu.co/24085/
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Atribución-NoComercial 4.0 Internacional
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Imhof, Luis Armando6bd81d34-2cbd-476c-80aa-d78da4c08a5b300Santamarina, Juan Carlosefdd4901-98b7-4f73-9788-1d3b50b2a4793002019-06-27T23:09:34Z2019-06-27T23:09:34Z2008https://repositorio.unal.edu.co/handle/unal/34005http://bdigital.unal.edu.co/24085/The exact determination of seismic waves' propagation velocities has great importance in the geotechnics due to from that it is possible to determine, among other parameters, the dynamic ones: Elasticity E, Rigidity G, Poisson !, compressibility B; as well as to reach a knowledge on the stress-strain behavior for the studied soil samples. The seismic waves transmission considered in tests at laboratory scale carried out in the present work is a phenomenon that produces very small deformation, and so doesn't disturb the material. This allowsto apply the results in a more general scale to study the behavior of soils in situ and to predict their answer to stress.With the purpose to study the response of particulate material subjected to seismic excitements at small scale, samples of gravels and sands were successively introduced in an odometric cell, exciting them with impulsive signals and registering the corresponding seismograms through general purpose piezoelectric transducers embedded in ends of the cell.The distance source-receiver was interval increased, which enabled, from the corresponding regression straight lines, to calculate in precise form the propagation velocities (for P waves).The tests were carried out in samples of dry alluvial soil with three different grain sizes. The respective frequency spectra of the signals were determined for two packing modes: loose and compact, what added information on the medium characteristics.application/pdfspaUNIVERSIDAD NACIONAL DE COLOMBIAhttp://revistas.unal.edu.co/index.php/esrj/article/view/21199Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research JournalEarth Sciences Research JournalEarth Sciences Research Journal; Vol. 12, núm. 1 (2008); 107-117 Earth Sciences Research Journal; Vol. 12, núm. 1 (2008); 107-117 2339-3459 1794-6190Imhof, Luis Armando and Santamarina, Juan Carlos (2008) Seismic velocity determination in gravel and sands using piezocrystals. Earth Sciences Research Journal; Vol. 12, núm. 1 (2008); 107-117 Earth Sciences Research Journal; Vol. 12, núm. 1 (2008); 107-117 2339-3459 1794-6190 .Seismic velocity determination in gravel and sands using piezocrystalsArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL21199-71937-1-PB.pdfapplication/pdf677539https://repositorio.unal.edu.co/bitstream/unal/34005/1/21199-71937-1-PB.pdfd3ddf4b4c374b09e1c2ea1cd45a78ba5MD51THUMBNAIL21199-71937-1-PB.pdf.jpg21199-71937-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg6222https://repositorio.unal.edu.co/bitstream/unal/34005/2/21199-71937-1-PB.pdf.jpg6ccf4e135b2783928241ad43db6dd070MD52unal/34005oai:repositorio.unal.edu.co:unal/340052022-12-29 23:03:07.108Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Seismic velocity determination in gravel and sands using piezocrystals
title Seismic velocity determination in gravel and sands using piezocrystals
spellingShingle Seismic velocity determination in gravel and sands using piezocrystals
title_short Seismic velocity determination in gravel and sands using piezocrystals
title_full Seismic velocity determination in gravel and sands using piezocrystals
title_fullStr Seismic velocity determination in gravel and sands using piezocrystals
title_full_unstemmed Seismic velocity determination in gravel and sands using piezocrystals
title_sort Seismic velocity determination in gravel and sands using piezocrystals
dc.creator.fl_str_mv Imhof, Luis Armando
Santamarina, Juan Carlos
dc.contributor.author.spa.fl_str_mv Imhof, Luis Armando
Santamarina, Juan Carlos
description The exact determination of seismic waves' propagation velocities has great importance in the geotechnics due to from that it is possible to determine, among other parameters, the dynamic ones: Elasticity E, Rigidity G, Poisson !, compressibility B; as well as to reach a knowledge on the stress-strain behavior for the studied soil samples. The seismic waves transmission considered in tests at laboratory scale carried out in the present work is a phenomenon that produces very small deformation, and so doesn't disturb the material. This allowsto apply the results in a more general scale to study the behavior of soils in situ and to predict their answer to stress.With the purpose to study the response of particulate material subjected to seismic excitements at small scale, samples of gravels and sands were successively introduced in an odometric cell, exciting them with impulsive signals and registering the corresponding seismograms through general purpose piezoelectric transducers embedded in ends of the cell.The distance source-receiver was interval increased, which enabled, from the corresponding regression straight lines, to calculate in precise form the propagation velocities (for P waves).The tests were carried out in samples of dry alluvial soil with three different grain sizes. The respective frequency spectra of the signals were determined for two packing modes: loose and compact, what added information on the medium characteristics.
publishDate 2008
dc.date.issued.spa.fl_str_mv 2008
dc.date.accessioned.spa.fl_str_mv 2019-06-27T23:09:34Z
dc.date.available.spa.fl_str_mv 2019-06-27T23:09:34Z
dc.type.spa.fl_str_mv Artículo de revista
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http://bdigital.unal.edu.co/24085/
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dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal
Earth Sciences Research Journal
dc.relation.ispartofseries.none.fl_str_mv Earth Sciences Research Journal; Vol. 12, núm. 1 (2008); 107-117 Earth Sciences Research Journal; Vol. 12, núm. 1 (2008); 107-117 2339-3459 1794-6190
dc.relation.references.spa.fl_str_mv Imhof, Luis Armando and Santamarina, Juan Carlos (2008) Seismic velocity determination in gravel and sands using piezocrystals. Earth Sciences Research Journal; Vol. 12, núm. 1 (2008); 107-117 Earth Sciences Research Journal; Vol. 12, núm. 1 (2008); 107-117 2339-3459 1794-6190 .
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
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dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
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rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
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