Abstract
The Geological Survey of Norway has detected >250 unstable rock slopes with significant postglacial deformation in Norway. Many of these could lead to catastrophic consequences through direct rockslide/rock-avalanche impacts and subsequent triggering of displacement waves upon impacting fjords or lakes. A hazard—and risk-classification system has been developed in order to prioritise follow-up activities at these sites, including more detailed investigations, periodic displacement measurements, continuous monitoring, and early-warning systems. This study presents a pragmatic methodology for assessing consequences of unstable rock slopes in Norway. The assessment comprises four steps: 1) volume estimation; 2) run-out assessment based on the volume-dependent angle of reach; 3) assessment of displacement wave propagation and run-up using empirical relations and generally applicable equations from physical model tests; and 4) estimation of the number of potential casualties. Show more
Publication status
publishedExternal links
Book title
Landslides and Engineered Slopes. Experience, Theory and Practice: Proceedings of the 12th International Symposium on LandslidesPages / Article No.
Publisher
CRC PressEvent
Organisational unit
03820 - Boes, Robert / Boes, Robert
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