Slope orientation assessment for open-pit mines, using GIS-based algorithms
Standard stability analysis in geomechanical rock slope engineering for open-pit mines relies on a simplified representation of slope geometry, which does not take full advantage of available topographical data in the early design stages of a mining project; consequently, this may lead to nonoptimal...
Published in: | Computers & Geosciences |
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Computer Oriented Geological Society
2019
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Online Access: | https://hdl.handle.net/20.500.11794/33133 https://doi.org/10.1016/j.cageo.2010.12.006 |
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ftunivlavalcorp:oai:corpus.ulaval.ca:20.500.11794/33133 2024-06-23T07:54:20+00:00 Slope orientation assessment for open-pit mines, using GIS-based algorithms Laflamme, Amélie-Julie Grenon, Martin Keewatin (Nunavut) 2019-01-11T15:53:17Z application/pdf https://hdl.handle.net/20.500.11794/33133 https://doi.org/10.1016/j.cageo.2010.12.006 eng eng Computer Oriented Geological Society 0098-3004 http://hdl.handle.net/20.500.11794/33133 doi:10.1016/j.cageo.2010.12.006 http://purl.org/coar/access_right/c_abf2 Open-pit mining Interramp orientation Bench face orientation GIS Integrated design Block modeling Pentes (Mécanique des sols) -- Stabilité Mines -- Exploitation à ciel ouvert Systèmes d'information géographique Modèles mathématiques article de recherche COAR1_1::Texte::Périodique::Revue::Contribution à un journal::Article::Article de recherche 2019 ftunivlavalcorp https://doi.org/20.500.11794/3313310.1016/j.cageo.2010.12.006 2024-06-10T23:42:53Z Standard stability analysis in geomechanical rock slope engineering for open-pit mines relies on a simplified representation of slope geometry, which does not take full advantage of available topographical data in the early design stages of a mining project; consequently, this may lead to nonoptimal slope design. The primary objective of this paper is to present a methodology that allows for the rigorous determination of interramp and bench face slope orientations on a digital elevation model (DEM) of a designed open pit. Common GIS slope algorithms were tested to assess slope orientations on the DEM of the Meadowbank mining project's Portage pit. Planar regression algorithms based on principal component analysis provided the best results at both the interramp and the bench face levels. The optimal sampling window for interramp was 21×21 cells, while a 9×9-cell window was best at the bench level. Subsequent slope stability analysis relying on those assessed slope orientations would provide a more realistic geometry for potential slope instabilities in the design pit. The presented methodology is flexible, and can be adapted depending on a given mine's block sizes and pit geometry. Other/Unknown Material Keewatin Nunavut Université Laval: CorpusUL Nunavut The Bench ENVELOPE(-53.181,-53.181,49.767,49.767) Computers & Geosciences 37 9 1413 1424 |
institution |
Open Polar |
collection |
Université Laval: CorpusUL |
op_collection_id |
ftunivlavalcorp |
language |
English |
topic |
Open-pit mining Interramp orientation Bench face orientation GIS Integrated design Block modeling Pentes (Mécanique des sols) -- Stabilité Mines -- Exploitation à ciel ouvert Systèmes d'information géographique Modèles mathématiques |
spellingShingle |
Open-pit mining Interramp orientation Bench face orientation GIS Integrated design Block modeling Pentes (Mécanique des sols) -- Stabilité Mines -- Exploitation à ciel ouvert Systèmes d'information géographique Modèles mathématiques Laflamme, Amélie-Julie Grenon, Martin Slope orientation assessment for open-pit mines, using GIS-based algorithms |
topic_facet |
Open-pit mining Interramp orientation Bench face orientation GIS Integrated design Block modeling Pentes (Mécanique des sols) -- Stabilité Mines -- Exploitation à ciel ouvert Systèmes d'information géographique Modèles mathématiques |
description |
Standard stability analysis in geomechanical rock slope engineering for open-pit mines relies on a simplified representation of slope geometry, which does not take full advantage of available topographical data in the early design stages of a mining project; consequently, this may lead to nonoptimal slope design. The primary objective of this paper is to present a methodology that allows for the rigorous determination of interramp and bench face slope orientations on a digital elevation model (DEM) of a designed open pit. Common GIS slope algorithms were tested to assess slope orientations on the DEM of the Meadowbank mining project's Portage pit. Planar regression algorithms based on principal component analysis provided the best results at both the interramp and the bench face levels. The optimal sampling window for interramp was 21×21 cells, while a 9×9-cell window was best at the bench level. Subsequent slope stability analysis relying on those assessed slope orientations would provide a more realistic geometry for potential slope instabilities in the design pit. The presented methodology is flexible, and can be adapted depending on a given mine's block sizes and pit geometry. |
format |
Other/Unknown Material |
author |
Laflamme, Amélie-Julie Grenon, Martin |
author_facet |
Laflamme, Amélie-Julie Grenon, Martin |
author_sort |
Laflamme, Amélie-Julie |
title |
Slope orientation assessment for open-pit mines, using GIS-based algorithms |
title_short |
Slope orientation assessment for open-pit mines, using GIS-based algorithms |
title_full |
Slope orientation assessment for open-pit mines, using GIS-based algorithms |
title_fullStr |
Slope orientation assessment for open-pit mines, using GIS-based algorithms |
title_full_unstemmed |
Slope orientation assessment for open-pit mines, using GIS-based algorithms |
title_sort |
slope orientation assessment for open-pit mines, using gis-based algorithms |
publisher |
Computer Oriented Geological Society |
publishDate |
2019 |
url |
https://hdl.handle.net/20.500.11794/33133 https://doi.org/10.1016/j.cageo.2010.12.006 |
op_coverage |
Keewatin (Nunavut) |
long_lat |
ENVELOPE(-53.181,-53.181,49.767,49.767) |
geographic |
Nunavut The Bench |
geographic_facet |
Nunavut The Bench |
genre |
Keewatin Nunavut |
genre_facet |
Keewatin Nunavut |
op_relation |
0098-3004 http://hdl.handle.net/20.500.11794/33133 doi:10.1016/j.cageo.2010.12.006 |
op_rights |
http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/20.500.11794/3313310.1016/j.cageo.2010.12.006 |
container_title |
Computers & Geosciences |
container_volume |
37 |
container_issue |
9 |
container_start_page |
1413 |
op_container_end_page |
1424 |
_version_ |
1802646461616226304 |