Wave breakthrough factor in dam destruction

Goncharova, O; Bunina, Y; Gaidukova, M; Egorov, V; Mikheeva, Olga Valentinovna

doi:10.1088/1757-899x/1001/1/012099

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…Paper [4] reports the calculation of the probable damage in an accident at hydraulic structures. The initial stage of a hydrodynamic accident is a breakthrough.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Devising a procedure to calculate and analyze parameters for passing the flood and breakthrough wave taking into consideration the topographical and hydraulic riverbed irregularities

Onyshchenko

Ostroverkh

Potapenko

et al. 2022

EEJET

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It has been established that the most likely period of breakthrough wave occurrence is the time of spring flooding or heavy rain when water-head facilities are subjected to significant loads that lead to the collapse of their individual elements or the entire structure. In addition, the possibility of man-made accidents that can occur at any time cannot be ruled out. It has been proven that breakthrough wave formation depends on the nature of the destruction or the overflow through a water-head facility. For the study reported in this paper, a model of the kinematics of riverbed and breakthrough flows was used, which is based on the equations of flow, washout, and transport of sediments that are averaged for the depths of the stream. The differential equations describing the nonstationary flow averaged for depth are solved using the numerical grid system FST2DH (2D Depth-averaged Flow and Sediment Transport Model), which implements a finite-element method on the plan of a riverbed's topographic region. These tools are publicly available, which allows their wide application to specific loads and boundary conditions of mathematical models. The construction of an estimation grid involving the setting of boundary conditions and the use of geoinformation system tools makes it possible to simulate the destruction of a culvert of the pressure circuit and obtain results for a specific case of an actual riverbed and a water-head facility. It has been established that there is a decrease in the speed of wave propagation along the profile, from 3 m/s to 1 m/s. The impact of bottom irregularities, the effect of floodplains, and the variety of bottom roughness have also been assessed, compared to the results of their calculation based on one-dimensional models given in the regulatory documents. Hydraulic calculations were carried out taking into consideration the related properties of the main layer of the floodplain, which consists of peat accumulations, and the heterogeneity of the depths and roughness of floodplain surfaces of soils. It has been established that there is almost no erosion of supports in the floodplain zone in this case. It was found that as the distance between the flow and breakthrough intersection increases, there is a decrease in the height of the head from 2.1 m to 1.25 m.

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“…Paper [4] reports the calculation of the probable damage in an accident at hydraulic structures. The initial stage of a hydrodynamic accident is a breakthrough.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Devising a procedure to calculate and analyze parameters for passing the flood and breakthrough wave taking into consideration the topographical and hydraulic riverbed irregularities

Onyshchenko

Ostroverkh

Potapenko

et al. 2022

EEJET

View full text Add to dashboard Cite

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Investigation of the breakthrough wave in accident at a hydraulic structure

Mikheeva¹,

Mirkina²,

Orlova³

et al. 2023

International Conference “Sustainable Development: Veterinary Medicine, Agriculture, Engineering and Ecology” (Vmaee2022)

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Monitoring of the Technical Condition and Optimisation of the Functioning of Small Hydraulic Structures in Poland: The Case Study of the Oświecim Weir

2022

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Successively conducted monitoring and inspections allow for the detection of emerging issues and their elimination. The objective of this study is the analysis of the administrative procedures related to the monitoring of the technical condition of small hydraulic structures in Poland. The case study of the Oświecim Weir on the Prosna River presents the parameters subject to assessment and further activities aimed at the elimination of the detected defects. The obtained results showed damage to its concrete structures, including cracks and cavities. The undertaken activities related to the complete remodelling of the Oświecim Weir and the incurred costs generally result from the environmental conditions (water flows in the Prosna River), directly causing the necessity for the stabilisation of water conditions in the area. In the context of the observed climatic changes, the problem is faced by more and more regions around the globe. The proper technical condition of hydraulic structures, resulting from diligent monitoring, provides the basis for the mitigation of this unfavourable situation.

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Wave breakthrough factor in dam destruction

Cited by 3 publications

References 10 publications

Devising a procedure to calculate and analyze parameters for passing the flood and breakthrough wave taking into consideration the topographical and hydraulic riverbed irregularities

Devising a procedure to calculate and analyze parameters for passing the flood and breakthrough wave taking into consideration the topographical and hydraulic riverbed irregularities

Investigation of the breakthrough wave in accident at a hydraulic structure

Monitoring of the Technical Condition and Optimisation of the Functioning of Small Hydraulic Structures in Poland: The Case Study of the Oświecim Weir

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