Terrestrial Photogrammetry and Numerical Modelling for the Stability Analysis of Rock Slopes in High Mountain Areas: Aiguilles Marbrées case
Several high-altitude slope instability phenomena, involving rock blocks of different volumes, have been observed in recent years. The increase in these phenomena could be correlated to climatic variations and to a general increase in temperature that has induced both ice melting with consequent wat...
Published in: | Rock Mechanics and Rock Engineering |
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ftunivparmairis:oai:air.unipr.it:11381/2684694 2024-04-14T08:13:00+00:00 Terrestrial Photogrammetry and Numerical Modelling for the Stability Analysis of Rock Slopes in High Mountain Areas: Aiguilles Marbrées case M. Curtaz A. M. Ferrero G. Umili RONCELLA, Riccardo SEGALINI, Andrea M., Curtaz A. M., Ferrero Roncella, Riccardo Segalini, Andrea G., Umili 2014 http://hdl.handle.net/11381/2684694 https://doi.org/10.1007/s00603-013-0446-z eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000331710200021 volume:47 issue:2 firstpage:605 lastpage:620 numberofpages:16 journal:ROCK MECHANICS AND ROCK ENGINEERING http://hdl.handle.net/11381/2684694 doi:10.1007/s00603-013-0446-z info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84896734243 info:eu-repo/semantics/closedAccess Rock Fall High mountain Remote surveying technique Stability analysi Distinct element model info:eu-repo/semantics/article 2014 ftunivparmairis https://doi.org/10.1007/s00603-013-0446-z 2024-03-21T18:16:28Z Several high-altitude slope instability phenomena, involving rock blocks of different volumes, have been observed in recent years. The increase in these phenomena could be correlated to climatic variations and to a general increase in temperature that has induced both ice melting with consequent water seepage and glacial lowering, with a consequent loss of support of the rock face. The degradation of the high-altitude thermal layer, which is known as "permafrost", can determine the formation of highly fractured rock slopes where instabilities can concentrate. The present research has developed a methodology to improve the understanding and assessment of rock slope stability conditions in high mountain environments where access is difficult. The observed instabilities are controlled by the presence of discontinuities that can determine block detachments. Consequently, a detailed survey of the rock faces is necessary, both in terms of topography and geological structure, and in order to locate the discontinuities on the slope to obtain a better geometric reconstruction and subsequent stability analysis of the blocky rock mass. Photogrammetric surveys performed at different times allow the geostructure of the rock mass to be determined and the rock block volumes and detachment mechanisms to be estimated, in order to assess the stability conditions and potential triggering mechanisms. Photogrammetric surveys facilitate both the characterisation of the rock mass and the monitoring of slope instabilities over time. The methodology has been applied in a case study pertaining to the North Face of Aiguilles Marbrées in the Mont Blanc massif, which suffers from frequent instability phenomena. A slope failure that occurred in 2007 has been back-analysed using both the limit equilibrium method (LEM) and 3D distinct element modelling (DEM). The method has been supported and validated with traditional in situ surveys and measurements of the discontinuity orientation and other rock mass features. Article in Journal/Newspaper Ice permafrost Archivio della ricerca dell'Università di Parma (CINECA IRIS) Mont Blanc ENVELOPE(69.468,69.468,-49.461,-49.461) Rock Mechanics and Rock Engineering 47 2 605 620 |
institution |
Open Polar |
collection |
Archivio della ricerca dell'Università di Parma (CINECA IRIS) |
op_collection_id |
ftunivparmairis |
language |
English |
topic |
Rock Fall High mountain Remote surveying technique Stability analysi Distinct element model |
spellingShingle |
Rock Fall High mountain Remote surveying technique Stability analysi Distinct element model M. Curtaz A. M. Ferrero G. Umili RONCELLA, Riccardo SEGALINI, Andrea Terrestrial Photogrammetry and Numerical Modelling for the Stability Analysis of Rock Slopes in High Mountain Areas: Aiguilles Marbrées case |
topic_facet |
Rock Fall High mountain Remote surveying technique Stability analysi Distinct element model |
description |
Several high-altitude slope instability phenomena, involving rock blocks of different volumes, have been observed in recent years. The increase in these phenomena could be correlated to climatic variations and to a general increase in temperature that has induced both ice melting with consequent water seepage and glacial lowering, with a consequent loss of support of the rock face. The degradation of the high-altitude thermal layer, which is known as "permafrost", can determine the formation of highly fractured rock slopes where instabilities can concentrate. The present research has developed a methodology to improve the understanding and assessment of rock slope stability conditions in high mountain environments where access is difficult. The observed instabilities are controlled by the presence of discontinuities that can determine block detachments. Consequently, a detailed survey of the rock faces is necessary, both in terms of topography and geological structure, and in order to locate the discontinuities on the slope to obtain a better geometric reconstruction and subsequent stability analysis of the blocky rock mass. Photogrammetric surveys performed at different times allow the geostructure of the rock mass to be determined and the rock block volumes and detachment mechanisms to be estimated, in order to assess the stability conditions and potential triggering mechanisms. Photogrammetric surveys facilitate both the characterisation of the rock mass and the monitoring of slope instabilities over time. The methodology has been applied in a case study pertaining to the North Face of Aiguilles Marbrées in the Mont Blanc massif, which suffers from frequent instability phenomena. A slope failure that occurred in 2007 has been back-analysed using both the limit equilibrium method (LEM) and 3D distinct element modelling (DEM). The method has been supported and validated with traditional in situ surveys and measurements of the discontinuity orientation and other rock mass features. |
author2 |
M., Curtaz A. M., Ferrero Roncella, Riccardo Segalini, Andrea G., Umili |
format |
Article in Journal/Newspaper |
author |
M. Curtaz A. M. Ferrero G. Umili RONCELLA, Riccardo SEGALINI, Andrea |
author_facet |
M. Curtaz A. M. Ferrero G. Umili RONCELLA, Riccardo SEGALINI, Andrea |
author_sort |
M. Curtaz |
title |
Terrestrial Photogrammetry and Numerical Modelling for the Stability Analysis of Rock Slopes in High Mountain Areas: Aiguilles Marbrées case |
title_short |
Terrestrial Photogrammetry and Numerical Modelling for the Stability Analysis of Rock Slopes in High Mountain Areas: Aiguilles Marbrées case |
title_full |
Terrestrial Photogrammetry and Numerical Modelling for the Stability Analysis of Rock Slopes in High Mountain Areas: Aiguilles Marbrées case |
title_fullStr |
Terrestrial Photogrammetry and Numerical Modelling for the Stability Analysis of Rock Slopes in High Mountain Areas: Aiguilles Marbrées case |
title_full_unstemmed |
Terrestrial Photogrammetry and Numerical Modelling for the Stability Analysis of Rock Slopes in High Mountain Areas: Aiguilles Marbrées case |
title_sort |
terrestrial photogrammetry and numerical modelling for the stability analysis of rock slopes in high mountain areas: aiguilles marbrées case |
publishDate |
2014 |
url |
http://hdl.handle.net/11381/2684694 https://doi.org/10.1007/s00603-013-0446-z |
long_lat |
ENVELOPE(69.468,69.468,-49.461,-49.461) |
geographic |
Mont Blanc |
geographic_facet |
Mont Blanc |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000331710200021 volume:47 issue:2 firstpage:605 lastpage:620 numberofpages:16 journal:ROCK MECHANICS AND ROCK ENGINEERING http://hdl.handle.net/11381/2684694 doi:10.1007/s00603-013-0446-z info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84896734243 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s00603-013-0446-z |
container_title |
Rock Mechanics and Rock Engineering |
container_volume |
47 |
container_issue |
2 |
container_start_page |
605 |
op_container_end_page |
620 |
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1796310853292654592 |