NH3.2/SM3.10/SSS13.46Ground damage, slope failures and liquefaction in seismically or volcanically active environments (co-organized)
|Convener: Randall W. Jibson | Co-Conveners: Hiroshi Fukuoka , Patrick Meunier , Odin Marc , George Papathanassiou|
Landslides are among the most damaging effects triggered by earthquake shaking. As it was evident by the Canterbury Earthquake Sequence 2010-2011, the Great East Japan 2011, the Emilia Romagna 2012 and Cephalonia 2014 earthquakes, soil liquefaction is an additionally secondary effect that can induced severe structural damages e.g. building settlement, lifeline failures and quay wall displacements. Observations from several recent earthquakes have shown that the death toll and destruction from seismically induced landslides can be extremely high. Similarly, volcanic activity and related seismicity commonly trigger damaging mass movements. Recent deployment of both geophysical instrumentation on the field and geodetic observation from space have produced an increasing number of data, giving space for case studies, global comparisons and model implementation. The purpose of this session is to provide a forum for discussion among researchers and other professionals who study landslides, liquefaction and related hazards caused by seismic and volcanic activity as well as geophysicist constraining processes relevant to failure such as strong motion, static stress loading, ground damage and recovery. Topics of interest include the following: (a) case histories of earthquake- and volcanically-triggered landslides, analyzed at either local or regional scale; (b) Documentation of field damage or mechanical weakening through direct observation or indirect geophysical
measurement and their consequence on landslide triggering or displacement; (d) Implementation of predictive model of ground-failure at global and
local scale; (e) physical modeling of the influence of dynamic loading on slope stability and induced landslide displacements; (f) studies constraining strong-motion, site effects, and topographic amplification in steep terrain , and their impact on intact hillslopes or pre-existing landslide masses; (g) comparisons of regional differences in the factors
associated with landslide occurrence; and (h) user requirements regarding hazard assessment and persisting challenges. Studies regarding the assessment of liquefaction susceptibility and the evaluation of liquefaction potential are also welcomed in this session.