10.15488/1866
El Safti, Hisham
Kudella, Matthias
Oumeraci, Hocine
Modelling wave-induced residual pore pressure and deformation of sand foundations underneath caisson breakwaters
Reston : American Society of Civil Engineers
2012
Caisson breakwater
Sand foundation
Computational time
Finite volume model
Fully-coupled
Governing equations
Physical model
Porous flow
Sand foundation
Surface plasticity model
Caissons
Coastal engineering
Foundations
Plasticity
Pore pressure
Pressure vessels
Breakwaters
Konferenzschrift
Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften
Technische Informationsbibliothek (TIB)
Technische Informationsbibliothek (TIB)
2017-09-08
2017-09-08
2012
eng
Article
El Safti, H.; Kudella, M.; Oumeraci, H.: Modelling wave-induced residual pore pressure and deformation of sand foundations underneath caisson breakwaters. In: Proceedings of the Coastal Engineering Conference (2012). DOI: https://doi.org/10.9753/icce.v33.structures.56
http://www.repo.uni-hannover.de/handle/123456789/1891
CC BY 3.0 US
A finite volume model is developed for modelling the behaviour of the seabed underneath monolithic breakwaters. The fully coupled and fully dynamic Biot's governing equations are solved in a segregated approach. Two simplifications to the governing equations are presented and tested: (i) the pore fluid acceleration is completely neglected (the u-p approximation) and (ii) only the convective part is neglected. It is found that neglecting the pore fluid convection does not reduce the computational time for the presented model. Verification of the model results with the analytical solution of the quasi-static equations is presented. A multi-yield surface plasticity model is implemented in the model to simulate the foundation behaviour under cyclic loads. Preliminary validation of the model with large-scale physical model data is presented.