Géotechnique· 2013Q1
Geotechnical stability analysis
- 715citations
- Q1SCImago
- 2013year
Short summary
A new finite-element limit analysis method combines plasticity theory with finite elements to provide rigorous upper and lower bounds on failure loads in geotechnical engineering, without needing to assume failure modes.
AI-generated from the title and abstract; the full text is not read.
Key points
- Combines plasticity limit theorems with finite elements for rigorous stability bounds.
- Does not require assumptions about the failure mode.
- Handles complex conditions like heterogeneity, anisotropy, and pore water pressures.
- Provides accurate limit loads with error estimates and adaptive meshing.
AI-generated from the title and abstract; the full text is not read.
Abstract
This paper describes recent advances in stability analysis that combine the limit theorems of classical plasticity with finite elements to give rigorous upper and lower bounds on the failure load. These methods, known as finite-element limit analysis, do not require assumptions to be made about the mode of failure, and use only simple strength parameters that are familiar to geotechnical engineers. The bounding properties of the solutions are invaluable in practice, and enable accurate limit loads to be obtained through the use of an exact error estimate and automatic adaptive meshing procedures. The methods are very general, and can deal with heterogeneous soil profiles, anisotropic strength characteristics, fissured soils, discontinuities, complicated boundary conditions, and complex loading in both two and three dimensions. A new development, which incorporates pore water pressures in finite-element limit analysis, is also described. Following a brief outline of the new techniques, stability solutions are given for several practical problems, including foundations, anchors, slopes, excavations and tunnels.
The authors' abstract, as published at the source. Géotechnique, 2013 · DOI ↗
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Field: Safety, Risk, Reliability and Quality
Safety, Risk, Reliability and QualityEngineering