Savitsky O. Dynamics of the footings on the complicated bases

Object of research: dynamic interaction of the shallow foundations with the layered and liquid-saturated bases. Object of research: dynamic contact problems for stamps on the complicated bases; regularities of change of reactions, displacements, accelerations and forces from parametres of models of the bases, the foundations and constructions. The work purpose is working out and development of models and numerical methods of the analysis of spatial dynamic interaction of the foundations with the basis taking into account elasticity, inertia, waves propagation and oscillations attenuation in viscoelastic, layered, porous elastic and poroelastoplastic liquid-saturated media, water and elements of structures. Methods of researches: a method of orthogonal polynomials for dynamic contact problems solution; methods of mechanics of continuum. Techniques of the solution of spatial problems of oscillations of the bases taking into account soil and water dynamic properties are developed; dynamic spatial contact problems are solved; regularities of change of dynamic reaction and displacements of the foundations on the viscoelastic layered basis are studied; regularities of change of the reactions of solid and liquid phases at oscillations of the shtamp with impenetrable foot on poroelastic liquid-saturated half-space are established. Calculations of seismic stability of responsible constructions of nuclear stations and offshore gravitational platforms are carried out. Use sphere: designing of the foundations of constructions in difficult engineering-geological conditions at dynamic loads.