Schmüdderich, Christoph ; Herz, Charlotte ; Albared, Alischa ; Machaček, Jan ; Prada-Sarmiento, Luis Felipe ; Staubach, Patrick ; Wichtmann, Torsten (2024)
A two-step dynamic FEM-FELA approach for seismic slope stability assessment.
In: Acta Geotechnica
doi: 10.1007/s11440-024-02443-4
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The determination of the factor of safety (FoS) of slopes during seismic excitation can be complex if the relevant effects of pore water pressure accumulation, nonlinear material response and variable shear strength are duly accounted for. A rational two-step approach to tackle this task based on a hydro-mechanically coupled dynamic simulation and finite element limit analyses is henceforth introduced. To ensure accurate transfer of the hydro-mechanical soil state, a mapping concept is presented, accounting for spatial distributions of stresses, excess pore water pressures, inertial forces and shear strength. The proposed approach is compared to limit equilibrium method (LEM) for the case of a large-scale water-saturated open cast mine slope subjected to seismic loading. In comparison with LEM, the new approach to assess seismic slope stability proves to be simpler in its implementation and straightforward, which could be an important asset for practitioners.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Schmüdderich, Christoph ; Herz, Charlotte ; Albared, Alischa ; Machaček, Jan ; Prada-Sarmiento, Luis Felipe ; Staubach, Patrick ; Wichtmann, Torsten |
| Art des Eintrags: | Bibliographie |
| Titel: | A two-step dynamic FEM-FELA approach for seismic slope stability assessment |
| Sprache: | Englisch |
| Publikationsjahr: | 18 November 2024 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Acta Geotechnica |
| DOI: | 10.1007/s11440-024-02443-4 |
| Kurzbeschreibung (Abstract): | The determination of the factor of safety (FoS) of slopes during seismic excitation can be complex if the relevant effects of pore water pressure accumulation, nonlinear material response and variable shear strength are duly accounted for. A rational two-step approach to tackle this task based on a hydro-mechanically coupled dynamic simulation and finite element limit analyses is henceforth introduced. To ensure accurate transfer of the hydro-mechanical soil state, a mapping concept is presented, accounting for spatial distributions of stresses, excess pore water pressures, inertial forces and shear strength. The proposed approach is compared to limit equilibrium method (LEM) for the case of a large-scale water-saturated open cast mine slope subjected to seismic loading. In comparison with LEM, the new approach to assess seismic slope stability proves to be simpler in its implementation and straightforward, which could be an important asset for practitioners. |
| Fachbereich(e)/-gebiet(e): | 13 Fachbereich Bau- und Umweltingenieurwissenschaften 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut für Geotechnik |
| Hinterlegungsdatum: | 20 Nov 2024 08:17 |
| Letzte Änderung: | 20 Nov 2024 08:17 |
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