000010922 001__ 10922
000010922 005__ 20141205155817.0
000010922 04107 $$aeng
000010922 046__ $$k2008-10-12
000010922 100__ $$aMaufroy, Emeline
000010922 24500 $$aModelisation of Topographic Site Effect 3D at the Low Noise Underground Laboratory (LSBB), Rustrel, France

000010922 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010922 260__ $$b
000010922 506__ $$arestricted
000010922 520__ $$2eng$$aThe local geology related to topographic site effects is known to have a strong impact on the amplifications and attenuations of the ground motion. The SHAKE3D finite difference code [Cruz-Atienza et al., 2007] allows studying the influence of various local structures and rheological parameters on the seismic response at the surface. The ground motion is simulated in a realistic heterogeneous 3D model. This model integrates the mountainous topography above the Low Noise Underground Laboratory, Rustrel, France (http://lsbb.unice.fr) and the medium properties deduced from seismic imaging experiment done in 2006. Such a topography is typical in the South-East region of France : steep slope (greater than 30%) and sharp crest followed by a broad plateau. This configuration also allows investigation of coupled basin-topographic responses at the regional scale. We consider several models taking into account the spatial variation of the rheological parameters VP, VS, QP, QS, and density together with the topography. Sources with different locations and radiation patterns are also considered relatively to the geometry of the topography. These simulations help us to improve our knowledge of the topographic effects taking into account the heterogeneity of medium and the complexity of the topography.

000010922 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010922 653__ $$aSite effects, topography, 3D wave propagation, ground motion simulation.

000010922 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010922 720__ $$aMaufroy, Emeline$$iCruz-Atienza, Victor$$iOperto, Stephane$$iSardou, Olivier$$iSénéchal, Guy$$iDietrich, Michel$$iGaffet, Stephane
000010922 8560_ $$ffischerc@itam.cas.cz
000010922 8564_ $$s1326712$$uhttps://invenio.itam.cas.cz/record/10922/files/02-0188.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 02-0188.
000010922 962__ $$r9324
000010922 980__ $$aPAPER