Coupled solid-fluid FE-analysis of an embankment dam
- First Online:
- Cite this article as:
- Pertl, M., Hofmann, M. & Hofstetter, G. Front. Archit. Civ. Eng. China (2011) 5: 53. doi:10.1007/s11709-010-0084-4
- 77 Downloads
A coupled solid-fluid FE-model for partially saturated soils, characterized by modeling the soil as a three-phase material consisting of a deformable soil skeleton and the fluid phases water and air, is reviewed briefly. As a constitutive model for the soil skeleton, the well-known Barcelona Basic model (BBM) is employed, which is formulated in terms of net stress and matric suction. For the BBM, a computationally efficient return mapping algorithm is proposed, which only requires the solution of a scalar nonlinear equation at the integration point level. The coupled FE-model is applied to the coupled transient numerical simulation of the water flow and the deformations and stresses in an embankment dam.