Evaluation of maximum rockfall dimensions based on probabilistic assessment of the penetration of the sliding planes into the slope

There is intrinsic difficulty in the investigation of the largest volume of rockfalls that is expected in an area, which lies in the small number of large events, in registrable times. The maximum credible rockfall size has been associated with the properties of the rock mass discontinuities, as the...

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Autores: Mavrouli, Olga Christina|||0000-0003-1909-6113, Corominas Dulcet, Jordi|||0000-0001-5049-7201
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/182763
Acceso en línea:https://hdl.handle.net/2117/182763
https://dx.doi.org/10.1007/s00603-020-02060-z
Access Level:acceso abierto
Palabra clave:Rock mechanics
Rockslides
Rockfall hazard
Maximum size
Joint persistence
Sliding plane area
Rockfall volume
Esllavissades
Mecànica de roques
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de roques
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oai_identifier_str oai:upcommons.upc.edu:2117/182763
network_acronym_str ES
network_name_str España
repository_id_str
spelling Evaluation of maximum rockfall dimensions based on probabilistic assessment of the penetration of the sliding planes into the slopeMavrouli, Olga Christina|||0000-0003-1909-6113Corominas Dulcet, Jordi|||0000-0001-5049-7201Rock mechanicsRockslidesRockfall hazardMaximum sizeJoint persistenceSliding plane areaRockfall volumeEsllavissadesMecànica de roquesÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de roquesThere is intrinsic difficulty in the investigation of the largest volume of rockfalls that is expected in an area, which lies in the small number of large events, in registrable times. The maximum credible rockfall size has been associated with the properties of the rock mass discontinuities, as they delimit detachable rock blocks, and in particular with the penetration of those discontinuities that comprise rockfall sliding planes. In highly fractured rock masses, the evaluation of the penetration remains an issue. A probabilistic methodology is proposed, to measure the penetration of potential sliding planes into the interior of a rocky slope. The main hypothesis of the method is that the sliding plane persistence is interrupted along its two directions, at the intersection with two lateral discontinuity sets, as the latter displaces the former. Due to the displacement, the sliding planes are formed by quasi-planes that contain a maximum number of spacings of the intersecting joints, hence their size is restricted. The methodology requires as an input the spacing of the intersecting joint sets. Its application to a granodiorite slope confirms that for the study site, there is a maximum volume of rockfalls, excluding the possibility of large stepped failures and rupture of rock bridges. The maximum calculated persistence for the two existing sliding planes in the study site is, respectively, 28.0 m and 48.5 m. The maximum calculated sliding plane surfaces are, accordingly, 282.5 m2 and 289.3 m2. These results are compared against the observed scar dimensions at the study site, which have been retrieved alternatively, by processing a LiDAR point cloud. The results from the two alternative sources are similar, indicating that the methodology can be efficiently used to assess the sliding plane persistence and the expected maximum rockfall magnitude at the study site.Peer Reviewed20202020-05-0120202020-04-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/182763https://dx.doi.org/10.1007/s00603-020-02060-zreponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 3.0 Spainhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1827632026-05-27T15:37:01Z
dc.title.none.fl_str_mv Evaluation of maximum rockfall dimensions based on probabilistic assessment of the penetration of the sliding planes into the slope
title Evaluation of maximum rockfall dimensions based on probabilistic assessment of the penetration of the sliding planes into the slope
spellingShingle Evaluation of maximum rockfall dimensions based on probabilistic assessment of the penetration of the sliding planes into the slope
Mavrouli, Olga Christina|||0000-0003-1909-6113
Rock mechanics
Rockslides
Rockfall hazard
Maximum size
Joint persistence
Sliding plane area
Rockfall volume
Esllavissades
Mecànica de roques
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de roques
title_short Evaluation of maximum rockfall dimensions based on probabilistic assessment of the penetration of the sliding planes into the slope
title_full Evaluation of maximum rockfall dimensions based on probabilistic assessment of the penetration of the sliding planes into the slope
title_fullStr Evaluation of maximum rockfall dimensions based on probabilistic assessment of the penetration of the sliding planes into the slope
title_full_unstemmed Evaluation of maximum rockfall dimensions based on probabilistic assessment of the penetration of the sliding planes into the slope
title_sort Evaluation of maximum rockfall dimensions based on probabilistic assessment of the penetration of the sliding planes into the slope
dc.creator.none.fl_str_mv Mavrouli, Olga Christina|||0000-0003-1909-6113
Corominas Dulcet, Jordi|||0000-0001-5049-7201
author Mavrouli, Olga Christina|||0000-0003-1909-6113
author_facet Mavrouli, Olga Christina|||0000-0003-1909-6113
Corominas Dulcet, Jordi|||0000-0001-5049-7201
author_role author
author2 Corominas Dulcet, Jordi|||0000-0001-5049-7201
author2_role author
dc.subject.none.fl_str_mv Rock mechanics
Rockslides
Rockfall hazard
Maximum size
Joint persistence
Sliding plane area
Rockfall volume
Esllavissades
Mecànica de roques
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de roques
topic Rock mechanics
Rockslides
Rockfall hazard
Maximum size
Joint persistence
Sliding plane area
Rockfall volume
Esllavissades
Mecànica de roques
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de roques
description There is intrinsic difficulty in the investigation of the largest volume of rockfalls that is expected in an area, which lies in the small number of large events, in registrable times. The maximum credible rockfall size has been associated with the properties of the rock mass discontinuities, as they delimit detachable rock blocks, and in particular with the penetration of those discontinuities that comprise rockfall sliding planes. In highly fractured rock masses, the evaluation of the penetration remains an issue. A probabilistic methodology is proposed, to measure the penetration of potential sliding planes into the interior of a rocky slope. The main hypothesis of the method is that the sliding plane persistence is interrupted along its two directions, at the intersection with two lateral discontinuity sets, as the latter displaces the former. Due to the displacement, the sliding planes are formed by quasi-planes that contain a maximum number of spacings of the intersecting joints, hence their size is restricted. The methodology requires as an input the spacing of the intersecting joint sets. Its application to a granodiorite slope confirms that for the study site, there is a maximum volume of rockfalls, excluding the possibility of large stepped failures and rupture of rock bridges. The maximum calculated persistence for the two existing sliding planes in the study site is, respectively, 28.0 m and 48.5 m. The maximum calculated sliding plane surfaces are, accordingly, 282.5 m2 and 289.3 m2. These results are compared against the observed scar dimensions at the study site, which have been retrieved alternatively, by processing a LiDAR point cloud. The results from the two alternative sources are similar, indicating that the methodology can be efficiently used to assess the sliding plane persistence and the expected maximum rockfall magnitude at the study site.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-05-01
2020
2020-04-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/182763
https://dx.doi.org/10.1007/s00603-020-02060-z
url https://hdl.handle.net/2117/182763
https://dx.doi.org/10.1007/s00603-020-02060-z
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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