Slope stability analysis: Barodesy vs linear elastic – Perfectly plastic models

Franz Tschuchnigg*, Gertraud Medicus, Barbara Schneider-Muntau

*Korrespondierende/r Autor/in für diese Arbeit

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

The results of slope stability analysis are not unique. Different factors of safety are obtained investigating the same slope. The differences result from different constitutive models including different failure surfaces. In this contribution, different strength reduction techniques for two different constitutive models (linear elastic - perfectly plastic model using a Mohr-Coulomb failure criterion and barodesy) have been investigated on slope stability calculations for two different slope inclinations. The parameters for Mohr – Coulomb are calibrated on peak states of element tests simulated with barodesy for different void ratios. For both slopes the predictions of the factors of safety are higher with barodesy than with Mohr-Coulomb. The difference is to some extend explained by the different shapes of failure surfaces and thus different values for peak strength under plane strain conditions. The plane strain predictions of Mohr-Coulomb are conservative compared to barodesy, where the failure surface coincides with Matsuoka-Nakai.

Originalspracheenglisch
Titel7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019
Redakteure/-innenErdin Ibraim, Alessandro Tarantino
Herausgeber (Verlag)EDP Sciences
ISBN (elektronisch)9782759890644
DOIs
PublikationsstatusVeröffentlicht - 25 Jun 2019
Veranstaltung7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019 - Glasgow, Großbritannien / Vereinigtes Königreich
Dauer: 26 Jun 201928 Jun 2019

Publikationsreihe

NameE3S Web of Conferences
Band92
ISSN (Print)2555-0403
ISSN (elektronisch)2267-1242

Konferenz

Konferenz7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019
LandGroßbritannien / Vereinigtes Königreich
OrtGlasgow
Zeitraum26/06/1928/06/19

ASJC Scopus subject areas

  • !!Environmental Science(all)
  • !!Energy(all)
  • !!Earth and Planetary Sciences(all)

Fingerprint Untersuchen Sie die Forschungsthemen von „Slope stability analysis: Barodesy vs linear elastic – Perfectly plastic models“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren