LADJEL Zohra, ZAHRI Farid, HADJI Riheb, HAMED Younes, ZIGHMI Karim, BENMARCE Kaddour. 2024: Integrated hazard assessment of rockfall incidents in the Cap Aokas Cliff Region. Journal of Mountain Science, 21(6): 1916-1929. DOI: 10.1007/s11629-024-8685-x
Citation: LADJEL Zohra, ZAHRI Farid, HADJI Riheb, HAMED Younes, ZIGHMI Karim, BENMARCE Kaddour. 2024: Integrated hazard assessment of rockfall incidents in the Cap Aokas Cliff Region. Journal of Mountain Science, 21(6): 1916-1929. DOI: 10.1007/s11629-024-8685-x

Integrated hazard assessment of rockfall incidents in the Cap Aokas Cliff Region

  • Rock fall accidents in mountainous cliff areas have significant consequences for human life and transportation. This study aimed to evaluate the rockfall hazard in the Cap Aokas cliff region located along the northeast coast of Algeria by identifying the key factors contributing to rockfall occurrence. We employed a combination of kinematic analysis, Matterocking method, and 3D trajectory simulations to determine zones that are susceptible to rockfall mobilization. By using a probabilistic and structural approach in conjunction with photogrammetry, we identified the controlling factors. The kinematic analysis revealed the presence of five discontinuity families, which indicated both plane and wedge failure modes. The 3D trajectory simulations demonstrated that the falling blocks followed the stream direction. We then validated the susceptibility maps generated from the analysis using aerial photos and historical rockfall events. The findings of this study enhance our understanding of rockfall phenomena and provide valuable insights for the development of effective strategies to mitigate rockfall hazards.
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