Assessment of stress state and dynamic characteristics of plane and spatial structure

Urazmukhamedova, Z.; Juraev, D.; Mirsaidov, Mirziyod

doi:10.1088/1742-6596/2070/1/012156

Cited by 5 publications

(4 citation statements)

References 21 publications

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“…x Along with this, the stress-strain state and dynamic behavior of various structures were studied in [31][32][33][34][35][36][37][38][39][40][41][42][43], taking into account the nonlinear, inelastic properties of the material and the features of their deformation.…”

Section: Introductionmentioning

confidence: 99%

Strength of earth dams considering the elastic-plastic properties of soils

et al. 2023

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The article provides a detailed review of well-known publications devoted to studying the stress state and dynamic behavior of earth dams, taking into account the elastic and elastic-plastic properties of soil. To assess the stress-strain state of earth dams, considering the elastic-plastic properties of soil under the action of static loads, a mathematical model was developed using the principle of virtual displacements. A technique, algorithm, and computer programs were developed for estimating the stress state of dams using the finite element method and the method of variable elasticity parameters. A test problem was solved to assess the adequacy of the developed models and the reliability of the technique, algorithms, and computer programs. The stress-strain state of the Pskem earth dam, 195 m high, was studied using the developed models and calculation methods, taking into account the elastic-plastic properties of soil under the action of body forces and various levels of filling the reservoir with water. It was established that an account for the elastic-plastic properties of soil leads to a sharp change in the stress state of the dam, especially in the upper prism and in the core of the dam, and changes the intensity of normal stresses, which can lead to a violation of the integrity of the dam.

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Section: Introductionmentioning

confidence: 99%

Strength of earth dams considering the elastic-plastic properties of soils

et al. 2023

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“…-the research given in [35] is devoted to the evaluation of the SSS and dynamic characteristics of various dam structures. With the proposed model and the FEM, the natural frequencies and modes of vibrations of an earth dam with a height of 296 m were studied.…”

Section: Introductionmentioning

confidence: 99%

Dynamic behavior of earth dams under different kinematic impacts

Mirsaidov

Toshmatov²

2023

E3S Web of Conf.

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The paper provides a detailed analysis of the current state of the problem. A mathematical model is presented to determine the dynamic behavior of earth dams, considering the viscoelastic properties of soil, using the hereditary Boltzmann-Volterra theory with the A.R. Rzhanitsyn kernel under periodic kinematic impacts. To solve the problems considered, the finite element method and complex arithmetics were used to reduce integrodifferential equations to a high-order complex algebraic equation. The accuracy of the methods was verified by solving test problems. Steadystate forced vibrations of the Pskem earth dam 195 m high are studied considering the real geometry and soil properties under resonant vibration modes. It was stated that the largest stress amplitudes in the body of the dam occur not only under the first resonance, but they can occur under other dense spectra of the eigenfrequencies of the dam, due to the interaction between close natural modes of vibration. The strength of various sections of the dam body was tested under kinematic impact using the Coulomb- Mohr theory of strength; the most dangerous sections of the dam were identified in terms of the highest stress.

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“…Static and dynamic stress states of various soil dams are considered in [6][7][8][9][10][11][12][13][14][15]; these studies take into account the design features of structures, nonlinear and moisture properties of soils, the interaction of structures with the water environment of the reservoir, and other features of structures.…”

Section: Introductionmentioning

confidence: 99%

Stress-strain state and strength of earth dams under static loads

Juraev

Matkarimov

2023

E3S Web of Conf.

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The article is devoted to studying the stress-strain state (SSS) and assessing the strength of the Gissarak, Sokh, and Pachkamar earth dams in a plane statement under the action of body forces and hydrostatic pressure. A mathematical model, algorithm, and computer program for studying the stress-strain state and assessing the strength of structures are developed in the article using the Lagrange variational equation. The finite element method was used in the problem solution. The adequacy of the model and the accuracy of the algorithm and program were verified by solving several test problems. It was revealed that the stress-strain state and strength of the studied earth dams significantly depend on the physical and mechanical properties of soils, the commensurability of geometric dimensions and slope coefficients of the dam retaining prisms, and on the level of water filling in reservoirs.

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Assessment of stress state and dynamic characteristics of plane and spatial structure

Cited by 5 publications

References 21 publications

Strength of earth dams considering the elastic-plastic properties of soils

Strength of earth dams considering the elastic-plastic properties of soils

Dynamic behavior of earth dams under different kinematic impacts

Stress-strain state and strength of earth dams under static loads

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