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Strain-dependent slope stability for earthquake loading

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  • Christoph Schmüdderich, Ruhr University Bochum
  • ,
  • Jan Machaček, Ruhr University Bochum, Technische Universität Darmstadt
  • ,
  • Luis Felipe Prada-Sarmiento
  • Patrick Staubach, Ruhr University Bochum
  • ,
  • Torsten Wichtmann, Ruhr University Bochum

Assessment of the seismic slope stability in terms of a factor of safety (FoS) is often addressed using pseudo-static approaches neglecting material-induced failure and the role of pore-fluids. On the other hand, sophisticated constitutive models that capture these effects can usually not be considered in strength reduction analyses. In this study, the concept of strain-dependent slope stability presented by Nitzsche and Herle (2020) was enhanced to enable the analysis of slope stability problems under earthquake loading. This allowed to apply advanced constitutive models to both, the dynamic and the stability analysis. The applicability of the concept was shown by analysis of FoS and failure mechanisms for a water-saturated opencast mine slope subject to earthquake loading. To capture the non-linear material behavior, the hypoplastic model with intergranular strain was used. Machine learning algorithms adopted to the problem at hand provided accurate approximations of FoS and failure mechanism while reducing computational costs by 2–3 orders of magnitude.

Original languageEnglish
Article number105048
JournalComputers and Geotechnics
Publication statusPublished - Dec 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Ltd

    Research areas

  • Earthquake loading, Factor of safety, Hypoplasticity, Machine learning, Material-induced failure, Strain-dependent slope stability

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