Rock Mass Characterization by UAV and Close-Range Photogrammetry: A Multiscale Approach Applied along the Vallone dell’Elva Road (Italy)

Geostructural rock mass surveys and the collection of data related to discontinues provide the basis for the characterization of rock masses and the study of their stability conditions. This paper describes a multiscale approach that was carried out using both non-contact techniques and traditional...

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Autores principales:	Maria Migliazza, Maria Teresa Carriero, Andrea Lingua, Emanuele Pontoglio, Claudio Scavia
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	slope stability geostructural survey point cloud photogrammetry UAV technique Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/11142320d67c499288f2228f6401b9c3
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id	oai:doaj.org-article:11142320d67c499288f2228f6401b9c3
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spelling	oai:doaj.org-article:11142320d67c499288f2228f6401b9c32021-11-25T17:42:40ZRock Mass Characterization by UAV and Close-Range Photogrammetry: A Multiscale Approach Applied along the Vallone dell’Elva Road (Italy)10.3390/geosciences111104362076-3263https://doaj.org/article/11142320d67c499288f2228f6401b9c32021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3263/11/11/436https://doaj.org/toc/2076-3263Geostructural rock mass surveys and the collection of data related to discontinues provide the basis for the characterization of rock masses and the study of their stability conditions. This paper describes a multiscale approach that was carried out using both non-contact techniques and traditional support techniques to survey certain geometrical features of discontinuities, such as their orientation, spacing, and useful persistence. This information is useful in identifying the possible kinematics and stability conditions. These techniques are extremely useful in the case study of the Elva valley road (Northern Italy), in which instability phenomena are spread across 9 km in an overhanging rocky mass. A multiscale approach was applied, obtaining digital surface models (DSMs) at three different scales: large-scale DSM of the entire road, a medium-scale DSM to assess portions of the slope, and a small-scale DSM to assess single discontinuities. The georeferenced point cloud and consequent DSMs of the slopes were obtained using an unmanned aerial vehicle (UAV) and terrestrial photogrammetric technique, allowing topographic and rapid traditional geostructural surveys. This technique allowed us to take measurements along the entire road, obtaining geometrical data for the discontinuities that are statistically representative of the rock mass and useful in defining the possible kinematic mechanisms and volumes of potentially detachable blocks. The main purpose of this study was to analyse how the geostructural features of a rock mass can affect the stability slope conditions at different scales in order to identify road sectors susceptible to different potential failure mechanisms using only kinematic analysis.Maria MigliazzaMaria Teresa CarrieroAndrea LinguaEmanuele PontoglioClaudio ScaviaMDPI AGarticleslope stabilitygeostructural surveypoint cloudphotogrammetryUAV techniqueGeologyQE1-996.5ENGeosciences, Vol 11, Iss 436, p 436 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	slope stability geostructural survey point cloud photogrammetry UAV technique Geology QE1-996.5
spellingShingle	slope stability geostructural survey point cloud photogrammetry UAV technique Geology QE1-996.5 Maria Migliazza Maria Teresa Carriero Andrea Lingua Emanuele Pontoglio Claudio Scavia Rock Mass Characterization by UAV and Close-Range Photogrammetry: A Multiscale Approach Applied along the Vallone dell’Elva Road (Italy)
description	Geostructural rock mass surveys and the collection of data related to discontinues provide the basis for the characterization of rock masses and the study of their stability conditions. This paper describes a multiscale approach that was carried out using both non-contact techniques and traditional support techniques to survey certain geometrical features of discontinuities, such as their orientation, spacing, and useful persistence. This information is useful in identifying the possible kinematics and stability conditions. These techniques are extremely useful in the case study of the Elva valley road (Northern Italy), in which instability phenomena are spread across 9 km in an overhanging rocky mass. A multiscale approach was applied, obtaining digital surface models (DSMs) at three different scales: large-scale DSM of the entire road, a medium-scale DSM to assess portions of the slope, and a small-scale DSM to assess single discontinuities. The georeferenced point cloud and consequent DSMs of the slopes were obtained using an unmanned aerial vehicle (UAV) and terrestrial photogrammetric technique, allowing topographic and rapid traditional geostructural surveys. This technique allowed us to take measurements along the entire road, obtaining geometrical data for the discontinuities that are statistically representative of the rock mass and useful in defining the possible kinematic mechanisms and volumes of potentially detachable blocks. The main purpose of this study was to analyse how the geostructural features of a rock mass can affect the stability slope conditions at different scales in order to identify road sectors susceptible to different potential failure mechanisms using only kinematic analysis.
format	article
author	Maria Migliazza Maria Teresa Carriero Andrea Lingua Emanuele Pontoglio Claudio Scavia
author_facet	Maria Migliazza Maria Teresa Carriero Andrea Lingua Emanuele Pontoglio Claudio Scavia
author_sort	Maria Migliazza
title	Rock Mass Characterization by UAV and Close-Range Photogrammetry: A Multiscale Approach Applied along the Vallone dell’Elva Road (Italy)
title_short	Rock Mass Characterization by UAV and Close-Range Photogrammetry: A Multiscale Approach Applied along the Vallone dell’Elva Road (Italy)
title_full	Rock Mass Characterization by UAV and Close-Range Photogrammetry: A Multiscale Approach Applied along the Vallone dell’Elva Road (Italy)
title_fullStr	Rock Mass Characterization by UAV and Close-Range Photogrammetry: A Multiscale Approach Applied along the Vallone dell’Elva Road (Italy)
title_full_unstemmed	Rock Mass Characterization by UAV and Close-Range Photogrammetry: A Multiscale Approach Applied along the Vallone dell’Elva Road (Italy)
title_sort	rock mass characterization by uav and close-range photogrammetry: a multiscale approach applied along the vallone dell’elva road (italy)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/11142320d67c499288f2228f6401b9c3
work_keys_str_mv	AT mariamigliazza rockmasscharacterizationbyuavandcloserangephotogrammetryamultiscaleapproachappliedalongthevallonedellelvaroaditaly AT mariateresacarriero rockmasscharacterizationbyuavandcloserangephotogrammetryamultiscaleapproachappliedalongthevallonedellelvaroaditaly AT andrealingua rockmasscharacterizationbyuavandcloserangephotogrammetryamultiscaleapproachappliedalongthevallonedellelvaroaditaly AT emanuelepontoglio rockmasscharacterizationbyuavandcloserangephotogrammetryamultiscaleapproachappliedalongthevallonedellelvaroaditaly AT claudioscavia rockmasscharacterizationbyuavandcloserangephotogrammetryamultiscaleapproachappliedalongthevallonedellelvaroaditaly
_version_	1718412089543884800

Rock Mass Characterization by UAV and Close-Range Photogrammetry: A Multiscale Approach Applied along the Vallone dell’Elva Road (Italy)

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