A Rigorous Variant of the Shear Strength Reduction Method and Its Usage in Slope Stability

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F23%3A10250412" target="_blank" >RIV/61989100:27120/23:10250412 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68145535:_____/23:00559883

Výsledek na webu

<a href="http://dx.doi.org/10.1007/978-3-031-12851-6_52" target="_blank" >http://dx.doi.org/10.1007/978-3-031-12851-6_52</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-031-12851-6_52" target="_blank" >10.1007/978-3-031-12851-6_52</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Rigorous Variant of the Shear Strength Reduction Method and Its Usage in Slope Stability

Popis výsledku v původním jazyce

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. (C) 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Název v anglickém jazyce

A Rigorous Variant of the Shear Strength Reduction Method and Its Usage in Slope Stability

Popis výsledku anglicky

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. (C) 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20700 - Environmental engineering

Projekt

<a href="/cs/project/GA19-11441S" target="_blank" >GA19-11441S: Efektivní a spolehlivé výpočetní techniky pro limitní analýzu a přírůstkové metody v geotechnické stabilitě</a><br>

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Lecture Notes in Civil Engineering. Volume 288

ISBN

978-3-031-12850-9

ISSN

2366-2557

e-ISSN

2366-2565

Počet stran výsledku

8

Strana od-do

441-448

Název nakladatele

Springer

Místo vydání

Cham

Místo konání akce

Turín

Datum konání akce

30. 8. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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