Shear strength reduction analysis and its usage in slope stability with unconfined seepage

0575718 - ÚGN 2025 RIV eng C - Konferenční příspěvek (zahraniční konf.)
Sysala, Stanislav - Tschuchnigg, F. - Hrubešová, E. - Michalec, Zdeněk
Shear strength reduction analysis and its usage in slope stability with unconfined seepage.
Proceedings of 10th NUMGE 2023. 2023 - (Zdravkovic, L.; Kontoe, S.; Taborda, D.; Tsiampousi, A.)
[European Conference on Numerical Methods in Geotechnical Engineering /10./. Imperial College London (GB), 26.06.2023-28.06.2023]
GRANT EU: European Commission(XE) 847593 - EURAD
Institucionální podpora: RVO:68145535
Klíčová slova: slope stability * shear strength reduction * optimization * finite elements * unconfined seepage
Obor OECD: Applied mathematics
Způsob publikování: Omezený přístup
https://www.issmge.org/uploads/publications/51/119/NUMGE2023-128.pdf

In this contribution, we introduce the shear strength reduction analysis built on an optimization definition and Davis approximations of the non-associated Mohr-Coulomb plastic flow rule. This optimization framework has many common features with limit analysis. For example, it is possible to analyse duality between static and kinematic principles or use more advanced numerical methods. A solution concept based on a regularization method, standard finite elements, continuation Newton method and mesh adaptivity is used. The suggested shear strength reduction analysis is used for a case study of a heterogeneous embankment dam. For the comparison of results, the Plaxis code is considered.
Trvalý link: https://hdl.handle.net/11104/0346525