Accés restreint aux usagers connectés
| Titre : | Création d'un algorithme afin d'étudier l'instabilité d'une falaise rocheuse à partir d'un nuage de points obtenu par photogrammétrie et des dispositifs à mettre en place pour gérer le risque |
| Auteurs : | Louis FARGE ; François BERNARD, Auteur |
| Type de document : | Mémoire d'initiation à la recherche |
| Année de publication : | 2021 |
| Concepts : |
RUPTURE
AUTOMATISATION PROGRAMMATION |
| Résumé : | Today, human activities focused on the expansion of the territory emphasize the number of stakes exposed to the rock fall risk. Both human and material stakes are the most concerning because they are required to the economic activity of a city, a province or a region. So, to avoid the impediment of the latter is essential once the potential consequences associated would be catastrophic. Thus, the improvement of the characterization of a rock fall hazard become more than a simple need but a real duty. The following dissertation organize itself around the recent ambition to automate the treatment of a 3D points cloud in the aim of assisting infrastructure's protection. The state of art on all the knowledge accumulated in the terms of rocky slopes breakage and the analysis of the factors influencing the slope stability constitute the subject of the first part. A second part is this time, dedicated to the exposition and the characteristic's analysis of various safety features. The following work takes place in the continuity of a project lead by Grégoire Giraud and Heloise Champenois in 2020. All the productions from photography to 3D outcrop model trough structural analysis were retrieved in the aim of building an automating strategy. The notion of automating refers itself to the conception of an algorithm, so the third part of this dissertation makes a focus on the presentation of all the tools and elements used in an informatic treatment. Due to the modernity and the complexity of the technical aspect of the problematic, few bibliographic resources were found. Our program's architecture is seriously inspired of the one developed by Pierre Saulet in 2017 and used with littoral cliffs. Finally, the last part of this work is dedicated to the presentation of the program developed, the context of his use but also to expose the limits noticed. The results of this program enable us to identify future perspectives of improvement for the purpose of treatments more performing, accurate and faster. |
| Spécialité : | Géologie |
| Numéro de promo : | 83 |
| numéro MIR : | 901 |
