Acta Geotechnica

, 2:183 | Cite as

Estimating inelastic sediment deformation from local site response simulations

Research Paper

Abstract

Significant insight into the dynamic local site response of a horizontally layered sediment deposit to seismic excitation can be gained from numerical simulations. In this paper we use a nonlinear local site response analysis code SPECTRA to estimate the coseismic sediment deformation at a seismically active site in Lotung, Taiwan. We address some basic issues relevant for interpreting the simulation results, including the impact of noise and baseline offsets present in the input ground motion. We also consider the sensitivity of the predicted deformation responses to statistical variations of sediment constitutive properties. Finally, we apply a suite of hypothetical strong ground motions to the base of the sediment deposit to better understand the pattern of inelastic deformation likely to result from strong seismic shaking.

Keywords

Coseismic sediment deformation Local site response Plasticity Seismicity Strong ground motion 

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  1. 1.Department of Civil and Environmental EngineeringStanford UniversityStanfordUSA
  2. 2.Department of Civil and Environmental EngineeringPrinceton UniversityPrincetonUSA

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