Numerical investigation of seismic amplification characteristics in loess ridge region of Xiji, northwest China.

ABSTRACT: The seismic effects on sloped terrain, which are of paramount importance for engineering design and earthquake risk mitigation, have always been a central focus of earthquake engineering research. In this study, generalized geometric models of loess ridges at varying heights were created, and a three-dimensional nonlinear numerical model was established using FLAC3D. Seismic ground motion time histories at different frequencies and actual earthquake ground motion records were input into the model to analyze the peak acceleration amplification effects experienced by the surface of loess ridges when subjected to SV waves. The study's outcomes reveal that seismic amplification on the slopes of loess ridges is characterized by non-linearity with respect to slope height. Instead, it exhibits rh

SUBMITTER: Peng D 

PROVIDER: S-EPMC10843532 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature