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Water 2018, 10(6), 737; https://doi.org/10.3390/w10060737

Hydrological Analysis of a Dyke Pumping Station for the Purpose of Improving Its Functioning Conditions

Faculty of Civil and Hydro Engineering, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland
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Received: 29 March 2018 / Revised: 28 May 2018 / Accepted: 1 June 2018 / Published: 5 June 2018
(This article belongs to the Section Hydrology)
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Abstract

This paper presents a methodology of calculating the water transfer capacity of a dyke pumping station in flood wave conditions in order to improve its functioning, especially with regards to the safety of the areas being drained. The exemplary analysis was carried out for a pumping station situated on a small right-bank tributary of the Odra River in the southwest part of Poland, which, due to the inadequate capacity of its pumps, extensively flooded the surrounding areas in May and June 2010. Hydrological analyses were conducted in order to determine the rate of the designed and control flows using a spatial regression equation, and as a comparison, the rainfall-runoff method was also used. The corresponding flood-wave hydrographs were also determined, which included total precipitation using the German Association For Water Resources and Land Improvement (DVWK) method, effective precipitation using the Natural Resource Conservation Service curve number (NRCS-CN) method, as well as hypothetical waves using the instantaneous unit hydrograph (IUH) method. Flood-wave routing was carried out and alternative solutions for both the output of the required pumps and the retarding reservoir capacity were highlighted on this basis. The paper presents the possibility of a correct pump capacity selection, and in turn, the size of the pumping station retarding reservoir that results from this selection. This will enable pumping station exploitation costs or maintenance costs of the retarding reservoir to be considerably reduced. View Full-Text
Keywords: hydrological model; dyke-pump station; design hydrograph; peak discharge; uncontrolled basin; small watershed; NRCS-CN method; rainfall-runoff model; spatial regression equation; retarding reservoir hydrological model; dyke-pump station; design hydrograph; peak discharge; uncontrolled basin; small watershed; NRCS-CN method; rainfall-runoff model; spatial regression equation; retarding reservoir
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Machajski, J.; Kostecki, S. Hydrological Analysis of a Dyke Pumping Station for the Purpose of Improving Its Functioning Conditions. Water 2018, 10, 737.

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