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| Titel: |
Evaluation of shallow foundation settlements by an elasto-plastic kinematic-isotropic hardening numerical model for granular soil |
| Auteur: |
Abate, G. Caruso, C. Massimino, M. R. Maugeri, M. |
| Verschenen in: |
Geomechanics and Geoengineering |
| Paginering: | Jaargang 3 (2008) nr. 1 pagina's 27-40 |
| Jaar: |
2008-03 |
| Inhoud: |
A numerical model based on a recent non-associative elasto-plastic model for sands (the Severn-Trent model), implemented in an FEM code, is presented. This model, which simultaneously takes into account the effects of the relative density DR and the mean effective stress level p reproduces the stress-strain behaviour of granular materials with reasonable accuracy. The constitutive relations are arranged in the form of a forward stress integration algorithm in a new subroutine. The algorithm is validated by comparison with the experimental results of several triaxial tests; the computed and experimental results are generally in good agreement for both loose and dense sands. Finally, the settlement of full-scale shallow foundations resting on a sand deposit is analysed; the numerical results obtained are very close to the experimental data. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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