Review article

The article considers the problems of using existing mathematical models (Mohr-Coulomb, Hardening Soil, Soft Soil) for calculating bases of soft soils of the lacustrine-glacial complex lg III. In addition, in geotechnical calculations there has developed the practice of forming local soil models taking into account the features of a particular region. A detailed study of the physical and mechanical properties of soils is a necessary aspect for the validation of models in software systems. In this regard, the authors have carried out a study of the weak clayey water-saturated soil of St. Petersburg to regulate the program of its laboratory tests and values for mathematical models in the regional geotechnical software systems.