NONLINEAR MODELS OF THE SOIL BASE FOR SLAB CULCULATIONS
Dostanova S. Kalpenova Z. Shayakhmetov S. Kasymova G. Tokpanova K.
10 September 2024Scientific Route
EUREKA, Physics and Engineering
2024#2024Issue 541 - 54 pp.
The proposed algorithm for calculating the base of dense clay soils was used in the calculation of rigid airfield and automobile coverings, railway embankments and slab foundations of large structures and in the body of earthworks (earthwork of hydraulic structures, earthwork of railways and highways, earthen dams) under static influences. The results of their numerical calculations showed that the linear models of such structures differ significantly from the real behavior of the soil, taking into account their plastic and rheological properties (sediments are underestimated by 2–3 times). The modules of soil deformation G (shear resistance) decrease when using nonlinear models, which leads to an increase in rheological and plastic properties, this process depends on the rate of intensity of deformations and stresses. All this must be taken into account when constructing and operating large and responsible structures. This requires a deeper study of the soil properties, confirmed by experimental data. In this work the equations of the soil state, experimentally obtained using triaxial compression devices, were used and an algorithm for calculating the soil base was compiled on their basis. The advantage of this algorithm is that it allows to obtain solutions for 3 base models and evaluate their effect on the stress-strain state inside the considered array and under the sole of the slab foundation. This is especially important for predicting the sediment of foundations for large-scale buildings and structures and the operation of the body of earthworks.
elasticity , nonlinear models , plasticity , plate , rheology , sediment , strain and stress intensity
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Department of Construction and Building Materials, T. K. Basenov Institute of Architecture and Civil Engineering, Satbayev University, 22 Satbaev str, Almaty, 050013, Kazakhstan
Department of General Construction International Educational Corporation, 28 Ryskulbekova str, Almaty, 50043, Kazakhstan
School of Engineering and Information Technology, Eurasian Technological University, 109 Tole bi str, Almaty, 050012, Kazakhstan
Department of Construction and Building Materials
Department of General Construction International Educational Corporation
School of Engineering and Information Technology
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