A Reliability Based Expert System for Assessment and Mitigation of Landslides Hazard Under Seismic Loading

Azm Al-Homoud and Wisam Tahtamoni

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2001, vol. 24, issue 1, 13-51

Abstract: Different models were developed for evaluating the probabilistic three-dimensional (3-D) stability analysis of earth slopes and embankments under earthquake loading using both the safety factor and the displacement criteria of slope failure. The probabilistic models evaluate the probability of failure under seismic loading considering the different sources of uncertainties involved in the problem. The models also take into consideration the spatial variabilities and correlations of soil properties. The developed models are incorporated in a computer program PTDDSSA. These analysis/design procedures are incorporated within a code named SARETL developed in this study for stability analysis and remediation of earthquake triggered landslides. In addition to the dynamic inertia forces, the system takes into consideration local site effects. The code is capable of assessing the landslide hazard affecting major transportation routes in the event of earthquakes and preparing earthquake induced landslide hazard maps (i.e., maps showing expected displacements and probability of slope/embankments failure) for different earthquake magnitudes and environmental conditions. It can also beused for proposing a mitigation strategy against landslides. Copyright Kluwer Academic Publishers 2001

Keywords: earthquakes; accelerations; Earth slopes; landslides; shear strength; 3-D stability analysis; safety factor; permanent deformations; uncertainties; spatial variability; probability of failure; expert system; remedial measures; hazard maps (search for similar items in EconPapers)
Date: 2001
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DOI: 10.1023/A:1011158429996

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