Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity
- Autores
- Oger, Luc; Tannoury, Claude El; Delannay, Renaud; Le Gonidec, Yves; Ippolito, Irene Paula; Roht, Yanina Lucrecia; Gómez Arriaran, Iñaki
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Laboratory study of slope stability of granular media remains a challenge for modeling, understanding, and predicting natural hazards, such as avalanches and landslides, precursory signs of which are controlled by numerous physical parameters. The present work focuses on the impact of the humidity, in the range of 40-90%, on the stability of monodisperse dense packings of spherical beads. The beads are in a transparent box that is slowly and continuously tilted and allows simultaneous top and lateral optical measurements of global displacements of grains at the surface, defined as precursors. Humidity increases the cohesion between the grains. By performing successive avalanches that destabilize deeper granular layers, we assess the role of the exposure time to the high humidity rates in the diffusion process to reach the hygroscopic equilibrium inside the packing. We highlight an increase of the stability and first precursor angles, associated to a constant angle increment between two consecutive precursors, with a dependency with both the diameter (0.2,0.5, and 0.75 mm) and the material (glass and polystyrene) of the grains.
Fil: Oger, Luc. Centre National de la Recherche Scientifique; Francia
Fil: Tannoury, Claude El. Centre National de la Recherche Scientifique; Francia
Fil: Delannay, Renaud. Centre National de la Recherche Scientifique; Francia
Fil: Le Gonidec, Yves. Centre National de la Recherche Scientifique; Francia
Fil: Ippolito, Irene Paula. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Roht, Yanina Lucrecia. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gómez Arriaran, Iñaki. Universidad del País Vasco; España - Materia
-
WET GRANULAR MATERIAL
FLOW INSTABILITY
GRANULAR FLOW
GRANULAR PACKING - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/168268
Ver los metadatos del registro completo
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Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activityOger, LucTannoury, Claude ElDelannay, RenaudLe Gonidec, YvesIppolito, Irene PaulaRoht, Yanina LucreciaGómez Arriaran, IñakiWET GRANULAR MATERIALFLOW INSTABILITYGRANULAR FLOWGRANULAR PACKINGhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Laboratory study of slope stability of granular media remains a challenge for modeling, understanding, and predicting natural hazards, such as avalanches and landslides, precursory signs of which are controlled by numerous physical parameters. The present work focuses on the impact of the humidity, in the range of 40-90%, on the stability of monodisperse dense packings of spherical beads. The beads are in a transparent box that is slowly and continuously tilted and allows simultaneous top and lateral optical measurements of global displacements of grains at the surface, defined as precursors. Humidity increases the cohesion between the grains. By performing successive avalanches that destabilize deeper granular layers, we assess the role of the exposure time to the high humidity rates in the diffusion process to reach the hygroscopic equilibrium inside the packing. We highlight an increase of the stability and first precursor angles, associated to a constant angle increment between two consecutive precursors, with a dependency with both the diameter (0.2,0.5, and 0.75 mm) and the material (glass and polystyrene) of the grains.Fil: Oger, Luc. Centre National de la Recherche Scientifique; FranciaFil: Tannoury, Claude El. Centre National de la Recherche Scientifique; FranciaFil: Delannay, Renaud. Centre National de la Recherche Scientifique; FranciaFil: Le Gonidec, Yves. Centre National de la Recherche Scientifique; FranciaFil: Ippolito, Irene Paula. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; ArgentinaFil: Roht, Yanina Lucrecia. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gómez Arriaran, Iñaki. Universidad del País Vasco; EspañaAmerican Physical Society2020-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/168268Oger, Luc; Tannoury, Claude El; Delannay, Renaud; Le Gonidec, Yves; Ippolito, Irene Paula; et al.; Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity; American Physical Society; Physical Review E; 101; 2; 2-2020; 1-122470-00452470-0053CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevE.101.022902info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.101.022902info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:32:09Zoai:ri.conicet.gov.ar:11336/168268instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:32:09.534CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity |
title |
Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity |
spellingShingle |
Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity Oger, Luc WET GRANULAR MATERIAL FLOW INSTABILITY GRANULAR FLOW GRANULAR PACKING |
title_short |
Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity |
title_full |
Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity |
title_fullStr |
Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity |
title_full_unstemmed |
Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity |
title_sort |
Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity |
dc.creator.none.fl_str_mv |
Oger, Luc Tannoury, Claude El Delannay, Renaud Le Gonidec, Yves Ippolito, Irene Paula Roht, Yanina Lucrecia Gómez Arriaran, Iñaki |
author |
Oger, Luc |
author_facet |
Oger, Luc Tannoury, Claude El Delannay, Renaud Le Gonidec, Yves Ippolito, Irene Paula Roht, Yanina Lucrecia Gómez Arriaran, Iñaki |
author_role |
author |
author2 |
Tannoury, Claude El Delannay, Renaud Le Gonidec, Yves Ippolito, Irene Paula Roht, Yanina Lucrecia Gómez Arriaran, Iñaki |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
WET GRANULAR MATERIAL FLOW INSTABILITY GRANULAR FLOW GRANULAR PACKING |
topic |
WET GRANULAR MATERIAL FLOW INSTABILITY GRANULAR FLOW GRANULAR PACKING |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Laboratory study of slope stability of granular media remains a challenge for modeling, understanding, and predicting natural hazards, such as avalanches and landslides, precursory signs of which are controlled by numerous physical parameters. The present work focuses on the impact of the humidity, in the range of 40-90%, on the stability of monodisperse dense packings of spherical beads. The beads are in a transparent box that is slowly and continuously tilted and allows simultaneous top and lateral optical measurements of global displacements of grains at the surface, defined as precursors. Humidity increases the cohesion between the grains. By performing successive avalanches that destabilize deeper granular layers, we assess the role of the exposure time to the high humidity rates in the diffusion process to reach the hygroscopic equilibrium inside the packing. We highlight an increase of the stability and first precursor angles, associated to a constant angle increment between two consecutive precursors, with a dependency with both the diameter (0.2,0.5, and 0.75 mm) and the material (glass and polystyrene) of the grains. Fil: Oger, Luc. Centre National de la Recherche Scientifique; Francia Fil: Tannoury, Claude El. Centre National de la Recherche Scientifique; Francia Fil: Delannay, Renaud. Centre National de la Recherche Scientifique; Francia Fil: Le Gonidec, Yves. Centre National de la Recherche Scientifique; Francia Fil: Ippolito, Irene Paula. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina Fil: Roht, Yanina Lucrecia. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Gómez Arriaran, Iñaki. Universidad del País Vasco; España |
description |
Laboratory study of slope stability of granular media remains a challenge for modeling, understanding, and predicting natural hazards, such as avalanches and landslides, precursory signs of which are controlled by numerous physical parameters. The present work focuses on the impact of the humidity, in the range of 40-90%, on the stability of monodisperse dense packings of spherical beads. The beads are in a transparent box that is slowly and continuously tilted and allows simultaneous top and lateral optical measurements of global displacements of grains at the surface, defined as precursors. Humidity increases the cohesion between the grains. By performing successive avalanches that destabilize deeper granular layers, we assess the role of the exposure time to the high humidity rates in the diffusion process to reach the hygroscopic equilibrium inside the packing. We highlight an increase of the stability and first precursor angles, associated to a constant angle increment between two consecutive precursors, with a dependency with both the diameter (0.2,0.5, and 0.75 mm) and the material (glass and polystyrene) of the grains. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-02 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/168268 Oger, Luc; Tannoury, Claude El; Delannay, Renaud; Le Gonidec, Yves; Ippolito, Irene Paula; et al.; Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity; American Physical Society; Physical Review E; 101; 2; 2-2020; 1-12 2470-0045 2470-0053 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/168268 |
identifier_str_mv |
Oger, Luc; Tannoury, Claude El; Delannay, Renaud; Le Gonidec, Yves; Ippolito, Irene Paula; et al.; Dynamic behavior of humid granular avalanches: Optical measurements to characterize the precursor activity; American Physical Society; Physical Review E; 101; 2; 2-2020; 1-12 2470-0045 2470-0053 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevE.101.022902 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.101.022902 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1846083455750766592 |
score |
13.22299 |