Journal
COMPUTERS AND GEOTECHNICS
Volume 79, Issue -, Pages 105-129Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2016.05.025
Keywords
Marine gravity structures; Marine gravity foundations; Porous media; Cyclic mobility; Residual pore pressure; Soil-structure interaction
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Funding
- Egyptian Ministry of Higher Education
- German Academic Exchange Service (DAAD)
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A new finite-volume solver named geotechFoam is developed within OpenFOAM (R)(1) for modelling soil structure-interaction for marine gravity structures. The fully-coupled and fully-dynamic Blot's governing equations are solved in a segregated approach. Two simplifications of the governing equations are introduced and tested. The spatial domain is composed of several zones with different material properties and/or constitutive models. A multi-yield surface plasticity model is implemented to simulate soil response under cyclic loads. Moreover, soil-structure interaction is modelled via a frictional contact model and boundary conditions accounting for skeleton-pore fluid coupling. Five benchmark cases and two sets of physical model tests are applied for the validation. (C) 2016 Elsevier Ltd. All rights reserved.
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