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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Mirsayapov Ilizar Talgatovich doctor of technical sciences, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articleCalculation model of changes in the strength of clay soils under triaxial block mode cyclic loading
Abstract.Problem statement. The main purpose of the research is to study changes in the strength of clay soil under conditions of triaxial compression, under block mode cyclic loads. To date, there are no data on the results of studies of changes in the strength of clay soils under cyclic loading for the considered modes. Results. Theoretical studies of the strength of clay soils under conditions of triaxial compression ?1 ? ?2 = ?3 under block mode cyclic loads are carried out. A distinctive feature of the research is that the change in strength is described in terms of the mechanics of the destruction of elastic-plastic bodies and the main criterion is the formation and development of micro- and macro-cracks to the limit values. The regularities of changes in the main strength characteristics of the soil during transitions to blocks with high and low stress levels are established. New data on the regularities of changes in the strength of clay soils under stationary and non-stationary modes of cyclic loading are obtained. Conclusions. The significance of the results obtained for the construction industry lies in the study of changes in the fatigue resistance to destruction of clay soils under three-axis regime block cyclic loading. It is established that the stress-strain state and fatigue strength of soils change depending on the sequence of alternating blocks with different values of the maximum load of the cycle.
Keywords.block-cyclic loading, stationary and non-stationary loading, clay soil, formation and development of micro-and macro-cracks, triaxial loading.
For citations:Mirsayapov Ilizar T. Calculation model of changes in the strength of clay soils under triaxial block mode cyclic loading // Izvestiya KGASU. 2020. №3(53) P.5-14.

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