Forecast of Settlement of Large-Size Foundations at High Pressures on the Base
Relevant issues are the construction of the foundation of structures with high values of mean pressures under the foundation base. At P II mt reaching 680 kPa, theaverage settlement of the structures reaches S=200-580 mm. At the same time, vertical displacements sharply increase, after overcoming the average pressuresconstituting P II mt=250-300 кПА. Herewith, from 60% up to 70% of deformations of the bases occurs during the construction, and the rest 30%-40% - after theinstallation of the structures. With such high values of average pressures and settlements of foundations, the projected values of the vertical displacements ofthese structures during subsequent periods of their operation are of no small importance. The logarithmic function S t= S 0+ A ln (1+ Bt ) is a successful mathematicaldependence for the prediction of settlements of foundations at any subsequent period of time.