Thickness dimensions of the contact layer of soil-rigid body interaction

Khusanov, Bakhtiyar; Rikhsieva, Barno

doi:10.1051/e3sconf/20199704040

Cited by 23 publications

(20 citation statements)

References 5 publications

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“…Due to slower decay with distance, the Airy phase represents the most intense part of the oscillations in surface seismic waves. The mechanism of the Airy phase was studied in [6][7][8][9][10][11][12]. Formulas for the frequency characteristics of surface waves in the case of a single-layer model of the earth's crust were obtained in [11,13].…”

Section: /  H ∆mentioning

confidence: 99%

“…The results obtained by 3 of 26 these methods, as practice has shown, in some cases are decisive due to the lack of other possibilities for interpreting the observed wave fields. However, recently created spectral theory of differential operators has made it possible to carry out mathematical modeling of wave fields in complex models of the real Earth [11].…”

Section: Introductionmentioning

confidence: 99%

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Study of The Seismic Stress State of the "Subgrade - Base" System, Taking Into Account the Formation and Propagation of Surface Seismic Waves

Shayakhmetov¹,

Zhauyt²

2023

Preprint

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The problems of formation and propagation of surface seismic waves in vertically layered and horizontally inhomogeneous media are studied. A mathematical model has been developed for the propagation of surface seismic waves in an inhomogeneous medium based on the use of the fundamental principles of wave dynamics and Fourier transforms. The existence of various types of groups of these waves is proved, and their main properties are studied. It has been established that the reflection coefficients of different groups of a dispersive wave on models of half-spaces (a layered, inhomogeneous medium) with a sharp velocity differentiation are characterized by the same dependence on the angle of incidence as in the absence of dispersion. In the region of the critical angle, which depends on the period of the incident wave, a local decrease in the intensity of wave reflection is observed, which is associated with the origin of the head dispersive wave. It has been found that the reflection coefficients of Rayleigh waves from low-velocity layers, thin (d / λ2 = 0.205) and thick (d / λ2 = 0.82) are approximately 0.2 ± 0.04 and practically do not change with increasing angle of incidence. On the basis of theoretical studies, it was revealed that reflected surface waves carry information both about the elastic properties of the reflecting medium and about the dimensions of the reflecting horizontal inhomogeneity. An experimental dispersion curve of the group velocity of Rayleigh waves on the Central Asia-Caucasus path has been obtained. The seismic stress state of the "subgrade-base" system was studied. Based on the analysis of the results of numerical experiments, it has been established that in order to obtain a complete picture of the seismically stressed state of the subgrade, it is necessary to take into account the contribution to it of each component of the accelerogram of a real earthquake.

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Section: /  H ∆mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of The Seismic Stress State of the "Subgrade - Base" System, Taking Into Account the Formation and Propagation of Surface Seismic Waves

Shayakhmetov¹,

Zhauyt²

2023

Preprint

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“…development. In contrast, Webex is just beginning to conquer the market for video services in Ukraine, and therefore this study will not describe this software(SULTANOV et al, 2020;RIKHSIEVA, 2019).At the same time, distance learning technologies such as Moodle and GoogleClassroom are specific technologies for the general public, and video systems such as Zoom and Hangouts Meet, albeit well-known, were almost non-existent prior to the introduction of quarantine restrictions in the educational process. Therefore, further research will cover a more detailed analysis of these 4 information and software resources of distance learning(ZARIPOV et al, 2020; UKHOV et al, 2020).…”

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confidence: 99%

Computer technologies and teaching aids for distance learning in educational institutions under quarantine

Pakhomova

Kan

Uriadova

et al. 2021

RPGE

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The global spread of coronavirus infection has paralysed the work of many areas of economic, business, and, of course, educational activities of almost all countries on the planet. Unfortunately, Ukraine is no exception and a quarantine regime has been introduced in this country. The way out of the current situation in education in Ukraine was the introduction of distance learning in all educational institutions, which created new challenges for both teachers and students. The purpose of the paper was to study information technologies, tools and methods of learning that can be used for distance learning in educational institutions under quarantine. As a result, authors analysed world practices in ensuring the educational process within the framework of distance learning. The advantages and disadvantages of distance learning technologies for both higher education institutions and higher education seekers were identified.

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“…Theories of Strength are the most applicable in solving elastoplastic problems in geomechanics. Studies of rock fracture under severe load conditions made it possible to formulate a number of strength theories that take into account the heterogeneity of materials, which is exposed in the process of controlled fracture [6,7]. The authors of strength theories proceeded from the assumption of an ideal structure that is solid, that is, has a homogeneous structure [8].…”

mentioning

confidence: 99%

“…To take into account the factor, which is shown in the form of falling section of the curve on the deformation graph, the so-called strength reduction function is usually introduced into the strength condition. Then the strength condition (5) can be described as follows: (7) where , , -is the strength criterion, the value of which is different at different points in the fracture area.…”

mentioning

confidence: 99%

Formation of Rock Slopes During Work to Reduce the Erosion Activity

Gasanov¹,

Mammadova²,

Mammadov³

et al. 2021

News of NAN RK. SGTS

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The formation of anti-erosion procedures is based primarily on achieving an equilibrium state that affects the state of the soil or constituent rocks of the slope. In this regard, the formation of a model that can demonstrate the processes of slope destruction, which can be represented not only by soil, but also by rocks or other formations, becomes relevant. In particular, it should be relevant for urban soils and technologically transformed landscapes. The novelty of the study is determined by the fact that all possible materials that form both slopes of natural origin and technological origin are considered as objects of potential erosion activity. The authors of the article are considering the possibility of applying reclamation measures that will reduce the maximum erosion activity within not only natural, but also urban landscapes. The article developed a model for analyzing the potential of erosion activity in combination with the physical parameters of the slopes and their mechanical composition. The practical significance of the study is determined by the fact that the proposed measures and the developed model for countering erosion activity can reduce technological costs for reclamation activities and thus increase the economic and technological efficiency of the project.

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Thickness dimensions of the contact layer of soil-rigid body interaction

Cited by 23 publications

References 5 publications

Study of The Seismic Stress State of the "Subgrade - Base" System, Taking Into Account the Formation and Propagation of Surface Seismic Waves

Study of The Seismic Stress State of the "Subgrade - Base" System, Taking Into Account the Formation and Propagation of Surface Seismic Waves

Computer technologies and teaching aids for distance learning in educational institutions under quarantine

Formation of Rock Slopes During Work to Reduce the Erosion Activity

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