Method for estimating rockfall failure probability using photogrammetry

Lauri Uotinen, Mateusz Janiszewski, Ritesh Mishra, Henri Munukka, Martyna Szydlowska, Daniele Martinelli, Paolo Dabove

Research output: Contribution to journalConference articleScientificpeer-review

Abstract

Passageways cut through rock might be subjected to rockfalls. If a falling rock reaches the road area, the consequences can be disastrous. The traditional rockfall risk assessment method and risk mitigation are based on on-site investigations performed by a geologist or a rock engineer. The parameters resulting from the investigation, such as discontinuities, orientations and spacings, potential rockfall initiation locations, slope geometry, and ditch profile, are either measured or estimated. We propose a photogrammetry-based method for estimating the probability of failure for rockfall. Several photographs of the rock-cut are taken, and a 3D geometry is computed using photogrammetry. This model already allows remote visual inspection of the site. The information about joint planes can be discovered semiautomatically from the point cloud. Next, the probability of rockfall reaching the road area is computed using probabilistic kinematic analysis on the geometry extracted using photogrammetry. The results can be used to define the rockfall probability for each rock-cut. Furthermore, the results can be used to determine the appropriate rockfall risk mitigation actions for each rock-cut.
Original languageEnglish
Article number012063
Number of pages8
JournalIOP Conference Series: Earth and Environmental Science
Volume833
Issue number1
DOIs
Publication statusPublished - 6 Sep 2021
MoE publication typeA4 Article in a conference publication

Keywords

  • rockfall
  • photogrammetry
  • risk assesment
  • rock engineering
  • mining

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