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Sökning: WFRF:(Baumann C.) > Luleå tekniska universitet

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1.
  • Burjánek, J., et al. (författare)
  • Earthquake Damage Scenario in Visp (Switzerland) : From Active Fault to Building Damage
  • 2012
  • Ingår i: Proceedings of the 15th World Conference on Earthquake Engineering 2012 (15WCEE). - : ETH Zürich.
  • Konferensbidrag (refereegranskat)abstract
    • We present a damage scenario based on multidisciplinary study which covers the key elements of the earthquakerisk chain in Visp. Full dynamic rupture simulations are performed using heterogeneous initial distributions,statistically compatible to the database of kinematic inversion results of past earthquakes. The fault is embeddedin the 3D velocity model of the area, which is based on an extensive ambient noise measurement campaign. Inorder to assess the risk in the city of Visp, the buildings were classified based on the screening survey of thebuilding stock. The seismic behavior of each class is described by the mean of fragility curves, partly developedby analytical, numerical and experimental investigations and partly based on existing methods
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2.
  • Fäh, Donat, et al. (författare)
  • Coupled seismogenic geohazards in Alpine regions
  • 2012
  • Ingår i: Bollettino di Geofisica Teorica ed Applicata. - 0006-6729. ; 53:4, s. 485-508
  • Tidskriftsartikel (refereegranskat)abstract
    • COupled seismogenic GEohazards in Alpine Regions (COGEAR) is an interdisciplinary natural hazard project investigating the hazard chain induced by earthquakes. It addresses tectonic processes and the related variability of seismicity in space and time, earthquake forecasting and short-term precursors, and strong ground motion as a result of source and complex path effects. We study non-linear wave propagation phenomena, liquefaction and triggering of landslides in soil and rock, as well as earthquake-induced snow avalanches. The Valais, and in particular parts of the Rhone, Visper, and Matter valleys have been selected as study areas. Tasks include detailed field investigations, development and application of numerical modeling techniques, assessment of the susceptibility to seismically induced effects, and installation of different monitoring systems to test and validate our models. These systems are for long-term operation and include a continuous GPS and seismic networks, a test installation for observing earthquake precursors, and a system to study site-effects and non-linear phenomena in two test areas (Visp, St. Niklaus / Randa). Risk-related aspects relevant for buildings and lifelines are also considered
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