Subsidence Estimation of Foundations Sand Beds Under Harmonic Dynamic Loads

Abstract The paper analyzes the weak decaying subsidence of foundations under dynamic load. Dynamic loads imposed on foundations cause uneven foundations subsidence of adjacent building and structures and cause their damage. Uneven foundation subsidence of adjacent machines involved in the same technological process cause its disfunction. The deformation of basement soil under dynamic loads has been referred to as soil vibrocreep. The existing theories concerning soil vibrocreep have been reviewed in the paper presented. Two main approaches are known: the first is based on the energy balance equation, while the second on the hereditary creep theory. The approximate alignment between experimental results and theoretical predictions derived from hereditary creep theory has been observed. The technique of prediction machinery foundations subsidence has been described. The laboratory facility and the computer software have been developed to implement it. The conclusions have been confirmed by the results of the research conducted and the technique reliability have been suggested.