Evaluation of the state of the dam and foundation of the sayano-shushenskoe hydroelectric station and measures to ensure its reliability (based on materials of the expert commission formed by the Engineering Academy of the Russian Federation)

Rozanov, N. P.; Kubetskii, V. L.

doi:10.1007/bf01545846

Cited by 4 publications

(3 citation statements)

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“…I.A. Sherenkov [1] theoretically substantiated the need to construct energy extinguishers in the lower reaches of the hydraulic complex to increase flow stability.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic characteristics of water flow in area of lower pool junction of spillway structures

et al. 2023

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One of the important issues is the assessment of the strength of the elements of hydraulic structures, spillway structures, reservoirs, and hydraulic complexes, the determination of the connection mode of the basins, and the reduction of kinetic energy in the reinforced fields of the downstream pool. In this regard, it is especially important to determine the hydrodynamic characteristics of the flow of water moving in the apron and risberme area, which provides the stability of the downstream pool - the areas that indicate the distribution and direction of velocity and pressure.

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“…I.A. Sherenkov [1] theoretically substantiated the need to construct energy extinguishers in the lower reaches of the hydraulic complex to increase flow stability.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic characteristics of water flow in area of lower pool junction of spillway structures

et al. 2023

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“…The possibility of determining the stability of stilling basin and apron in the downstream water outlets of low-and medium-head reservoirs by comparing their vibrational oscillations with the spectral characteristics of pulsating stresses is substantiated by the authors of the article considering the results of experiments carried out by other researchers [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Calculation of strength of stilling basins and pressure in downstream water outlet structures

Khidirov,

Artikbekova,

Begmatov

et al. 2023

E3S Web of Conf.

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Calculations performed to determine the strength of the stilling basin and apron of the downstream zone should mainly be carried out, considering the conditions of their stability and strength. When calculating the elements of the fastening zone for strength and stability, it is advisable to consider vertical and moment hydrodynamic stresses. Conducting targeted research on developing scientific methods for calculating the interface between the spillway and downstream outlet structures, mitigating kinetic energy in the downstream toe, choosing designs for protecting downstream of the structure, and determining hydrodynamic loads is particularly important. In this regard, one of the important tasks is to conduct scientific research on improving the design of the downstream toe, working out methods for determining hydrodynamic loads while calculating the thickness of the stilling basin and apron, which ensures the strength of the downstream toe.

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“…The main content of the research consists of observation at the initial stage of the process of operation of the downstream areas of the water outlet structures of low-medium pressure reservoirs to draw up different schemes of the outlet part of the distribution of the average flow velocity along the dynamic axis and in plan in the apron and stilling basin. The hydrodynamic characteristic in the considered zone of the water flow is one of the main factors affecting the strength, reliability, and stability of the downstream elements of the structure [1][2][3][4][5][6] In the experimental studies, energy absorbers in the form of short walls were chosen to mitigate the energy of flow, as shown in the diagram in Fig. 1 [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Effect of flow velocity on downstream energy absorbers and velocity coefficient

Khidirov,

Artikbekova,

Azimov

et al. 2023

E3S Web of Conf.

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As a result of designing an energy absorber in the zone of conjugation of water outlet structures of low-pressure and mediumpressure reservoirs, the stilling basin is not only under the influence of vertical hydrodynamic pressure with a variable value but also the disappearance of stagnation of the stilling basin can also be affected by the hydrodynamic stress arising from the force of horizontal pressure in the energy absorber. The hydraulic jump in the pool junction zone is one of the simplest energy absorbers. To increase the efficiency of this process, it is necessary to improve the hydraulic regime downstream of the water outlet, reshape the interface mode in the stilling basin and on the apron surface, and eliminate flow disturbance, through the construction of special energy absorbers in the stilling basin. These structures exert reactive (accelerating implementation), dislocation (accommodating), and distributed forces on the flow.

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Evaluation of the state of the dam and foundation of the sayano-shushenskoe hydroelectric station and measures to ensure its reliability (based on materials of the expert commission formed by the Engineering Academy of the Russian Federation)

Cited by 4 publications

References 0 publications

Hydrodynamic characteristics of water flow in area of lower pool junction of spillway structures

Hydrodynamic characteristics of water flow in area of lower pool junction of spillway structures

Calculation of strength of stilling basins and pressure in downstream water outlet structures

Effect of flow velocity on downstream energy absorbers and velocity coefficient

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