Numerical Approach To One Problem Of Structure-subsoil Interaction
Author(s)
J. Šejnoha & P. Procházka
Abstract
Numerical approach to one problem of
structure-subsoil interaction
J. Sejnoha & P. Prochazka
Czech Technical University Prague, Czech Republic
Abstract
The goal of this paper is to introduce an energy-based approach to interac-
tion between
• a creeping upper structure, and
• a subsoil undergoing consolidation.
Following the variational formulation the numerical, finite element-based
procedure, is proposed.
We start by analysing interaction between individual phases character-
izing transport processes in porous media. A set of differential equations
describing these phenomena is derived. The main difficulty occurs when
linking both the upper structure and subsoil. The displacement field might
be incompatible along the interface between the two parts of the system
considered. The remedy is to apply the modified Lagrange principle to the
equilibrium equations pertaining to both sub domains separately.
Conversion of the principle of virtual work to the Lagran
Keywords
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