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Discontinuity set extraction from 3D point clouds obtained by UAV Photogrammetry in a rockfall site
Survey Review, 2022Rockfall event is common on rocky terrain, and it threatens people. Recent advances in remote sensing technologies allow us to model the terrain with high accuracy and resolution.
M. Yakar +3 more
semanticscholar +1 more source
2010
Rockfalls are a type of fast mass movement common in mountain areas worldwide triggered. Natural triggers of rockfalls comprise earthquakes (Harp and Wilson 1995; Marzorati et al. 2002), freeze-thaw cycles of water (Gardner 1983; Matsuoka and Sakai 1999), melting of snow (Wieczorek and Jager 1996) or permafrost (Gruber et al. 2004), temperature changes
Guzzetti F, Reichenbach P
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Rockfalls are a type of fast mass movement common in mountain areas worldwide triggered. Natural triggers of rockfalls comprise earthquakes (Harp and Wilson 1995; Marzorati et al. 2002), freeze-thaw cycles of water (Gardner 1983; Matsuoka and Sakai 1999), melting of snow (Wieczorek and Jager 1996) or permafrost (Gruber et al. 2004), temperature changes
Guzzetti F, Reichenbach P
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Three-dimensional rockfall modelling and rockfall protection – Port Hills
Proceedings of the 2013 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering, 2013After the February 2011 Christchurch earthquakes Geovert were commissioned by the Canterbury Earthquake Recovery Authority (CERA) to provide the desperately needed answers to the widespread rockfall hazard. Including how best to protect people and assets, how much will it cost and how long will it take.
Mathew Avery +2 more
openaire +1 more source
Geology, 1998
Large rockfalls and debris avalanches constitute spectacular geologic hazards. A physical basis for the prediction of the extent of runout of such transport events has remained elusive. We consider the simplest case in which a mass M of debris and loose rock, having fallen from a height H , is subjected to a constant, overall resisting shear stress ...
W. Brian Dade, Herbert E. Huppert
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Large rockfalls and debris avalanches constitute spectacular geologic hazards. A physical basis for the prediction of the extent of runout of such transport events has remained elusive. We consider the simplest case in which a mass M of debris and loose rock, having fallen from a height H , is subjected to a constant, overall resisting shear stress ...
W. Brian Dade, Herbert E. Huppert
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Rockfall Hazard Analysis for Hong Kong Based on Rockfall Inventory
Rock Mechanics and Rock Engineering, 2003¶This paper compiles and analyzes the rockfall data in Hong Kong in the last fifty years. A simple rockfall hazard analysis is presented based on this rockfall inventory. A frequency-magnitude relation, which is analogous to the Gutenberg-Richter relation for earthquake occurrence, is proposed for rockfall, and direct correlation between rockfall ...
Liu, J, Chau, KT, Wong, RHC, Lee, CF
openaire +3 more sources
1996
Highways in Kentucky contain numerous rock slopes and rockfall from these slopes represent potential dangers to motorists. As these highway rock cut slopes age and deteriorate because of weathering, the potential for rockfall and rock slides increases. Some bodily injuries and traffic fatalities have been reported in past years.
Hopkins, Tommy C. +2 more
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Highways in Kentucky contain numerous rock slopes and rockfall from these slopes represent potential dangers to motorists. As these highway rock cut slopes age and deteriorate because of weathering, the potential for rockfall and rock slides increases. Some bodily injuries and traffic fatalities have been reported in past years.
Hopkins, Tommy C. +2 more
openaire +1 more source
Modelling Rockfall Protection Fences
2008The paper reports an analytical formulation of a block impacting into a metallic net of a rockfall protection fence able to evaluate the net elongation and its braking time. The analytical procedure has been calibrated through a comparison with the experimental results of full-scale impact tests carried out in a vertical-drop test site.
Cantarelli G. +3 more
openaire +2 more sources