Deformation of clay under block step-by-step static triaxial loading
https://doi.org/10.22227/2305-5502.2025.1.10
Abstract
Introduction. When designing foundation bases, questions arise about the deformation characteristics of soil under complex stress conditions. In this case, the issue of qualitative modelling in laboratory conditions of the calculated stress-strain state of the massif remains the most relevant. One of the solutions may be to study the mechanical properties of soils under block triaxial loading with independently adjustable vertical σ1 and horizontal σ2 = σ3 stresses.
Materials and methods. Laboratory triaxial block regime tests of clayey soils with disturbed structure were carried out. Modes with alternat.ing increasing and decreasing blocks of deviatoric loading were used, with the maximum value of the deviator of the first increasing block of loading and the amplitude of unloading for all modes were assumed to be the same. The studies were carried out on cubic-shaped specimens. A device with rigid edges was used.
Results. The main results of the conducted research are new data on the change in deformations and strength of specimens under block triaxial mode loading conditions depending on the magnitude of all-round compression. The analysis of the obtained results is performed. Some patterns of clayey soil behaviour are established. The mechanism of processes occurring in the specimen is substantiated.
Conclusions. The influence of the magnitude of lateral pressure on the development of linear and volumetric deformations of the specimen, the ultimate values of the destructive load, taking into account the presence of blocks of repeated deviatoric loading, was established.
Keywords
Supporting agencies: The author thanks Doctor of Technical Sciences, Professor, Head of the Department of Foundations, Dynamics of Structures and Engineering Geology of the Kazan State University of Architecture and Civil Engineering Ilizar Talgatovich Mirsayapov for advice and consultations, as well as the reviewers for their interest in the work.
About the Author
I. V. Koroleva
Kazan State University of Architecture and Engineering (KSUAE)
Russian Federation
Russian Federation
Irina V. Koroleva — Candidate of Technical Sciences, Associate Professor, Department of Bases, foundations, building dynamics and engineering geology
2-110, 1 Zelenaya st., Kazan, 420043, Republic of Tatarstan
Scopus: 54403079700
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Review
For citations:
Koroleva I.V. Deformation of clay under block step-by-step static triaxial loading. Construction: Science and Education. 2025;15(1):97-104. (In Russ.) https://doi.org/10.22227/2305-5502.2025.1.10
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