ABSTRACT
Clay soil is the most fragile element of the “building above – ground part – foundation – soil base” system. This is especially important in cases where the base has received deformations during operation and micro- and macro-shear zones have formed in the soil, but the building is not subject to demolition. This loaded soil has different physical-mechanical characteristics than the data obtained from the geotechnical surveys results before the building construction start. The authors carried out studies of changes in the soil strength, which has a “history of loading”. A soil sample with a disturbed structure was first loaded in a triaxial compression device of a cubic shape, and then destroyed in a stabilometer. Data were obtained on the change in soil strength depending on time and the influence of humidity on this process. Analytical equations have been developed that describe the process of changing the soil strength with a loading history.
