TXT-tool 4.039-3.1: Terrestrial Laser Scanner and Geomechanical Surveys for the Rapid Evaluation of Rock Fall Susceptibility Scenarios

  • Giovanni Gigli
  • Stefano Morelli
  • Simone Fornera
  • Nicola Casagli


This paper is aimed at presenting a semiautomatic procedure that, coupled with conventional methods, can be useful for a prompt definition of rock fall susceptibility scenarios with civil protection purposes. Due to its landscape morphology (steep slopes and narrow valley), regional seismicity, and rock mass characteristics, the Nera Valley (Valnerina, Umbria Region, Italy) is highly prone to rock falls. In order to cover a wide range of features and investigate the main advantages and drawbacks of the proposed approach, data collection was carried out in three different slopes by means of terrestrial laser scanning (TLS) and geomechanical surveys. Detailed three-dimensional (3D) terrain models were reconstructed to obtain the geometry of the most unstable blocks, to define the position of the main rock fall source areas, and to precisely distinguish the outcropping materials and the position of the elements at risk for reliable runout analyses. Consequently, the proposed approach can positively support proper maintenance and land management programs both in ordinary and in emergency circumstances.


Rock mass Landslide Kinematic analysis DiAna Valnerina 



This work was carried out within a research contract between the Department of Civil and Environmental Engineering of the University of Perugia and the Department of Earth Sciences, University of Firenze. The authors are also thankful to Prof. Hengxing Lan for his kind authorization to employ the Rockfall Analyst software for 3D simulations.


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Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  • Giovanni Gigli
    • 1
  • Stefano Morelli
    • 1
  • Simone Fornera
    • 1
  • Nicola Casagli
    • 1
  1. 1.Department of Earth SciencesUniversity of FirenzeFlorenceItaly

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