Acquisitions de données topographiques par drone pour la réalisation d'une étude hydraulique complexe

Abstract

To control hydraulic network, SNCF checks regularly sizing of the installations. This kind of study is usually made by using conventional terrestrial topography process (total station, GPS...). To minimise operation cost while improving acquisitions and deliverables quality, SNCF Réseau has decided to test the use of UAV to acquire input data. This article presents those experimental acquisitions (from data acquisition to hydraulic study deliverables), UAV data validation (by comparing UAV photogrammetric data with ULM LiDAR data) but also UAV deliverables analysis (topographic plan, cross sections...) which was lead to make the hydraulic study of the area of interest.