The finite-element calculation procedure of strain of the soil cooperating with elastic structures located in it is constructed. Calculation is spent on the basis of parities of the nonlinear theory of elasticity. For modeling interaction between deformable structures and soil continuums the special "contact" finite element is used, allowing to consider all cases of interaction of contacting continuums, including shift with slipping and detachment . As an example the problem of stage-by-stage excavation from a foundation ditch with concrete walls is solved. Necessity of the decision of a contact problem for modeling interaction concrete constructions and a soil is shown.
метод конечных элементов, контактные задачи, конечные деформации, грунты, a method of finite elements, contact problems, finite strains, soils
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