River Bed Erosion and Sustainable Solutions at the Austrian Danube River

Осми българо-австрийски семинар "Хидроложки опасности и свързаните с тях проблеми", 30 – 31 май 2019

M. Tritthart; M. Liedermann; M. Glas; H. Habersack

River Bed Erosion and Sustainable Solutions at the Austrian Danube River

ЦБ II 544

Детайли

Източник: Годишник на УАСГ
Година на издаване: 2019
Пор.№: Бр.S1
Страници: с. S1443-1452
Том: 52
Ключови думи: river bed erosion, groynes, morphodynamics, the Danube River

Отрасъл: Общ отдел. Наука. Библ. дело. Енциклопедии
Анотация: The Austrian Danube east of Vienna is characterized by a sediment deficit causing a long-term erosive trend and posing a hazard for a river bed breakthrough of the gravel cover layer into fine marine sediment deposits. As a remedy, various gravel replenishment methods, as well as the modification of groyne structures were tested. Replacing the top layer with a wide-graded sediment mixture resulted in the best stabilization effect. Moreover, modifications of groyne geometries were tested numerically, employing a sediment transport model based on 3D hydrodynamics. It was found that even comparably small changes to the existing groynes yield a strong morphodynamic reaction of the river bed. Morphodynamic equilibrium could be achieved in particular by optimizing the crest levels of the groyne structures. The measures implemented so far resulted in a clear reduction of the erosion trend in the river reach.
Системен №: 4930

Действия

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Tritthart, M., Liedermann, M., Glas, M., Habersack, H. River Bed Erosion and Sustainable Solutions at the Austrian Danube River. 2019 с. S1443-1452,.

Tritthart, M., Liedermann, M., Glas, M., Habersack, H. (2019) River Bed Erosion and Sustainable Solutions at the Austrian Danube River, с. S1443-1452,.

Tritthart, M., Liedermann, M., Glas, M., & Habersack, H. (2019). River Bed Erosion and Sustainable Solutions at the Austrian Danube River. Осми българо-австрийски семинар "Хидроложки опасности и свързаните с тях проблеми", 30 – 31 май 2019. Годишник на УАСГ (с. с. S1443-1452). 52 (Бр.S1).

Tritthart M, Liedermann M, Glas M, Habersack H. River Bed Erosion and Sustainable Solutions at the Austrian Danube River: Осми българо-австрийски семинар "Хидроложки опасности и свързаните с тях проблеми", 30 – 31 май 2019. 2019. p. с. S1443-1452.