Scale Modeling of Riga HPP Stilling Basin

Authors

  • Danica Starinac Jaroslav Černi Institute for the Development of Water Resources, Jaroslava Černog 80, 11226 Pinosava-Belgrade
  • Predrag Vojt Jaroslav Černi Institute for the Development of Water Resources, Jaroslava Černog 80, 11226 Pinosava-Belgrade
  • Dimitrije Mladenović Jaroslav Černi Institute for the Development of Water Resources, Jaroslava Černog 80, 11226 Pinosava-Belgrade
  • Dragiša Žugić Jaroslav Černi Institute for the Development of Water Resources, Jaroslava Černog 80, 11226 Pinosava-Belgrade
  • Radomir Kapor University of Belgrade - Faculty of Civil Engineering, Bulevar Kralja Aleksandra 73, 11000 Belgrade
  • Ljubodrag Savić University of Belgrade - Faculty of Civil Engineering, Bulevar Kralja Aleksandra 73, 11000 Belgrade

Keywords:

Scale model, Spillway, Riga

Abstract

Riga HPP was built in 1974, as the third and most downstream hydropower plant in a system of cascade dams on the Daugava River (Latvia). According to the design criteria at that time, all structures were designed to safely pass a discharge of Q0.1%=7800 m³/s. Considering the fact that the capital city is located some 15 km downstream from the dam, it is considered a high-hazard dam. Current engineering trends recommend the application of a more stringent design criterion – all structures should be able to safely pass a discharge of QPMF=12800 m³/s. Scale model tests were aimed at assessing the possibility of passing the higher flood discharge through existing structures, by determining all the important hydraulic parameters in the study area. The project included a combination of numerical modeling of the downstream rating curve and physical modeling, and was carried out using a model on a scale of 1:60. The project provided not only important results, which should be very helpful in future maintenance, but also recommendations for improving the existing situation.

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Published

2017-06-01

How to Cite

Starinac, D., Vojt, P., Mladenović, D., Žugić, D., Kapor, R., & Savić, L. (2017). Scale Modeling of Riga HPP Stilling Basin. Water Research and Management, 7(2), 3–19. Retrieved from http://wrmjournal.com/index.php/wrm/article/view/211

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Articles