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Remote Sens. 2018, 10(9), 1475; https://doi.org/10.3390/rs10091475

The Contribution of Terrestrial Laser Scanning to the Analysis of Cliff Slope Stability in Sugano (Central Italy)

1
Department of Earth Sciences, Sapienza University of Rome, Piazzale Aldo Moro, 5–00185 Rome, Italy
2
NHAZCA S.r.l., Via Vittorio Bachelet, 12–00185 Rome, Italy
3
ISPRA—Istituto Superiore per la Protezione e la Ricerca Ambientale, Via Vitaliano Brancati, 48–00144 Rome, Italy
*
Author to whom correspondence should be addressed.
Received: 13 August 2018 / Revised: 9 September 2018 / Accepted: 14 September 2018 / Published: 15 September 2018
(This article belongs to the Special Issue Landslide Hazard and Risk Assessment)
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Abstract

In this work, we describe a comprehensive approach aimed at assessing the slope stability conditions of a tuff cliff located below the village of Sugano (Central Italy) starting from remote geomechanical analysis on high-resolution 3D point clouds collected by terrestrial laser scanner (TLS) surveys. Firstly, the identification of the main joint systems has been made through both manual and automatic analyses on the 3D slope model resulting from the surveys. Afterwards, the identified joint sets were considered to evaluate the slope stability conditions by attributing safety factor (SF) values to the typical rock blocks whose kinematic was proved as compatible with tests for toppling under two independent triggering conditions: hydrostatic water pressure within the joints and seismic action. The results from the remote investigation of the cliff slope provide geometrical information of the blocks more susceptible to instability and pointed out that limit equilibrium condition can be achieved for potential triggering scenarios in the whole outcropping slope. View Full-Text
Keywords: cliff slopes; geomechanical analysis; terrestrial laser scanning (TLS); rock toppling; slope stability analysis cliff slopes; geomechanical analysis; terrestrial laser scanning (TLS); rock toppling; slope stability analysis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Mazzanti, P.; Schilirò, L.; Martino, S.; Antonielli, B.; Brizi, E.; Brunetti, A.; Margottini, C.; Scarascia Mugnozza, G. The Contribution of Terrestrial Laser Scanning to the Analysis of Cliff Slope Stability in Sugano (Central Italy). Remote Sens. 2018, 10, 1475.

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