Page 52 - Design Considerations Based on Quantitative Risk Assessments for Slopes
P. 52
Quantitative Risk Assessment
Frequency of Landslide
▪ There are several ways of calculating frequency of
landslide (IUGS 1997):
• Historical data within the area with similar characteristics,
e.g., geology and morphology.
• Modelling the primary variable, e.g. piezometric pressures.
• Relationship to the frequency and intensity of the triggering
event.
• Empirical methods based on correlations in accordance with
slope ranking systems or hazard maps.
• Direct assessment using event tree methodology.
• Combinations of the above methods
