Combined Field and Structure from Motion Survey to Identify Rock Discontinuity Sets of Aa Shallow Rockslide

Abstract The present work shows the results of a combined field and Structure from Motion (SfM) survey performed on detachment surface shallow rockslide that occurred in Rosandra Valley (Trieste, NE Italy), which was aimed at testing use 3D models obtained Remote Sensing (RS) techniques to identify joint sets affecting unstable rock masses. According discontinuity orientation data acquired (N = 223), investigated mass is affected by least nine characterised notable variability. extraction point cloud representing surveyed outcrop strongly sensitive density values controlling parameters function embedded within extractor. This demonstrates that, order properly sets, exclusive application RS approach cannot fully substitute traditional survey, estimation should be integrated with using geological compass. To maximise its capabilities, semi-automatic set clouds always supported significant statistical sample measurements are preliminarily collected field.