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Article

Jedlička, Michal ; Němec, Ivan ; Vala, Jiří
On the possibilities of computational modelling of interaction of a structure with subsoil. (English). In: Chleboun, J., Papež, J., Segeth, K., Šístek, J. and Vejchodský, T. (eds.): Programs and Algorithms of Numerical Mathematics. Proceedings of Seminar. Hejnice, June 23-28, 2024. , Prague, 2025. pp. 73-83
MSC: 74L10, 74M15, 74S05 | DOI: 10.21136/panm.2024.07
Keywords:
structure-soil interaction; computational modelling; finite element method
Summary:
The following possibilities of reduction of dimension in the computational analysis of strain and stresses transferred to the subsoil massive are available: i) coming from the effective subsoil model by Kolář & Němec (1989), based on the assumptions of the Pasternak's model (1954), where the pair of material parameters of a surface model is evaluated from the energy equivalence, ii) reducing a large sparse matrix of soil massive stiffness to a smaller one, using Schur's complement technique. In both cases i), ii) the steady-state analysis is decisive: inclusion of more complicated combination of loads can be performed without repeated computations.
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