On one variant of physical dependencies in modeling the development of the line of separation of a building from the foundation when leveling the tilt with jacks

Objective. The aim of the study is to develop refined methods for calculating structures on deformable foundations. To achieve this objective, the problem of constructing refined dependencies between stresses and strains in a physically nonlinear material taking into account crack formation is considered. Method. The use of refined mechanical and mathematical models will allow not only to obtain more reliable results of the operation of the "structure - foundation - deformable base" system, but also to correctly solve the engineering problem of designing reinforcement and the leveling process. Result. To design the reinforcement of the basement and upper parts of the structure, mechanical and mathematical modeling of the process of tear-off line formation with increasing forces in jacks was performed based on a physically nonlinear statement of the problem and the use of refined physical dependencies for a thin layer in which there is adhesion between the superstructure and the foundation. The requirements for a mechanical model of the process of detaching a building from the foundation with increasing forces on jacks are substantiated. Conclusion. The main physical dependencies that determine the process of formation of the tear line in the adhesion layer are formulated, and also take into account the structural nonlinearity associated with the change in the calculation scheme during the gradual tearing of the building from the foundation.

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