The analysis of factors influencing the dynamics of lowland riverbed erosion downstream of the Jeziorsko reservoir dam (central Poland)

• Autorzy: Smaga A. , Wierzbicki J. , Wierzbicki M. , Hämmerling M. , Radaszewski R.

Identyfikatory

DOI

10.7306/gq.1384

• Języki publikacji: EN

Abstrakty

EN

Increased riverbed erosion could recently be observed in close vicinity of hydrotechnical constructions in many lowland rivers. The immediate effect of erosion in this case is a very significant reduction of the riverbed level over a considerable distance, downstream of large reservoir dams. This process is influenced simultaneously by both hydraulics of river flow and geotechnical properties of soil eroded. The paper presents an analysis of parametric changes in the level of river bottom and grain size of bed material, and the relative density in the context of changes in hydrological conditions and diversity of engineering-geological conditions. As the result, a multiparametric model of erosional potential of riverbed sediments has been proposed, which can significantly help in proper planning of locations and construction of correction thresholds under given hydraulic conditions of the river.

Słowa kluczowe

EN

river erosion; geotechnical parameters; hydrotechnical constructions; physical model

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Geological Quarterly
• Rocznik: 2017
• Tom: Vol. 61, No. 4
• Strony: 926--933
• Opis fizyczny: Bibliogr. 30 poz., rys., wykr.

Twórcy

autor

Smaga A.

• INTERRA - Przedsiębiorstwo Geologiczne i Geotechniczne, os. Rzeczypospolitej 85/1, 61-392 Poznań

autor

Wierzbicki J.

• Adam Mickiewicz University in Poznań, Institute of Geology, Faculty of Geographical and Geological Sciences, Bogumiła Krygowskiego 12, 61-680 Poznań, Poland

autor

Wierzbicki M.

• Regional Water Management Board – Poznań, Chlebowa 4/8, 61-003 Poznań, Poland

autor

Hämmerling M.

• Poznań University of Life Sciences, Department of Hydraulic and Sanitary Engineering, Piątkowska 94a, 60-649 Poznań, Poland

autor

Radaszewski R.

• Adam Mickiewicz University in Poznań, Institute of Geology, Faculty of Geographical and Geological Sciences, Bogumiła Krygowskiego 12, 61-680 Poznań, Poland

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).