Soil base deformation features of the pile foundations on loess and landsliding territories at static and dynamic loadings

摘要

The features of interaction between the pile foundations (stress strain state) and the soil base deformation, depending on the type of soil (loess soil, sliding zones, seismic zones), typical of Ukraine, are analyzed. Authors suggest to search the form and the place of a potential slip surface by fixing the localization of zones of plastic deformations in the soil massif. The experimental results of parameters' definition of loess thickness at static and dynamic loading impact are shown. Features of pile interaction in a soil massif, which depends on their sizes and their location under the building, are revealed. The differences of the stress strain state formation, which result from combinations of various loadings, either static or dynamic, in the elements of ? soil basis - foundation - building ? system, are exposed, depending on the chosen simulation model (soil massif, coefficient of rigidity).