When designing pile foundations on soaking soils, one of the main tasks before the designer is to determine the load permissible for the cinder. The most dangerous is the moisture of a part of the subsiding layer by raising the level of groundwater. In particular, the requirements for determining the bearing capacity of the pile on soils which were introduced for the first time in the regulatory documents, as well as the requirements of the normative documents that replaced the previous norms, were analyzed. As in the previous normative documents and in the DBN B.2.1-10-2009, the case where only partial soaking of a thicker sediment soil can occur by raising the level of ground water, and the subsidence of soil from its own weight at the same time will amount to 5 cm. In this case, the upper layers of the penetrating layer will be in an impenetrable natural state and will hang over soaked, sown soil. Consequently, all conditions are created for the complete manifestation of the forces of negative friction (subsidence of the soil thickness more than 5 cm). In this case, the unsuspected layers of the soil above will be preserved by the physical-mechanical characteristics of the natural state, and the moisture of the thickening of the soil will correspond to the first type of soil conditions for sowing. In this article, problematic issues concerning calculations of pile foundations on soils are presented, ways of their solution are proposed. As a result of the research, a method is proposed that will allow more accurately determine the permissible load on a fall in soils in the case of wetting of a part of the subsiding layer by raising the level of soils.
