Počet záznamů: 1
A Rigorous Variant of the Shear Strength Reduction Method and Its Usage in Slope Stability
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SYSNO ASEP 0559883 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název A Rigorous Variant of the Shear Strength Reduction Method and Its Usage in Slope Stability Tvůrce(i) Sysala, Stanislav (UGN-S) RID, ORCID
Hrubešová, Eva (UGN-S)
Michalec, Zdeněk (UGN-S)
Tschuchnigg, F. (AT)Celkový počet autorů 4 Zdroj.dok. Challenges and Innovations in Geomechanics, Proceedings of the 16th International Conference of IACMAG, 3. - Cham : Springer Nature Switzerland AG, 2023 / Barla M. ; Di Donna A. ; Sterpi D. ; Insana A. - ISSN 2366-2557 - ISBN 978-3-031-12850-9 Rozsah stran s. 441-448 Poč.str. 8 s. Forma vydání Online - E Akce International Conference of the International Association for Computer Methods and Advances in Geomechanics Datum konání 30.08.2022 - 02.09.2022 Místo konání Turin Země IT - Itálie Typ akce WRD Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova slope stability ; shear strength reduction method ; Davis approach ; convex optimization ; finite element method Vědní obor RIV JM - Inženýrské stavitelství Obor OECD Applied mathematics CEP GA19-11441S GA ČR - Grantová agentura ČR Institucionální podpora UGN-S - RVO:68145535 EID SCOPUS 85136334597 DOI 10.1007/978-3-031-12851-6_52 Anotace The shear strength reduction method (SSRM) is a standard method in slope stability enabling to determine the factor of safety and related failure zones. In case of the non-associated Mohr-Coulomb model, the method can oscillate with respect to the refinement of a finite element mesh. To suppress this drawback, the non-associated model is approximated by the associated one such that the strength parameters are reduced by using a function depending on a scalar factor and on the effective friction and dilatancy angles. This modification (MSSRM) can be easily implemented in commercial codes like Plaxis or Comsol Multiphysics. Next, an optimization approach to the modified SSRM (OPT-MSSRM) is introduced. It is shown that the optimization problem is well-defined and can be analyzed by variational principles. For its solution, a regularization method is combined with mesh adaptivity and implemented in Matlab. The SSRM, MSSRM and OPT-MSSRM methods are compared on numerical examples representing a case study of a real heterogeneous slope. Pracoviště Ústav geoniky Kontakt Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Rok sběru 2023 Elektronická adresa https://link.springer.com/chapter/10.1007/978-3-031-12851-6_52
Počet záznamů: 1