In this work, the author first made an attempt using the engineering theory of contact pressure of soil, in the recommended software complexes to formulate a general approach to modeling the "life cycle" of port and shelf hydraulic structures. The use of a dimensionless deformation curve made it possible to obtain interconnected stress and deformation in the elements of the structure over the entire cycle of power loading of the structure interacting with the soil, including a special case - the limit state.