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1 Studia Geotechnica et Mechanica

1 2010

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Model investigations of side channel spillway of the Pilchowice storage reservoir on the Bóbr River

Machajski J., Olearczyk D.

Studia Geotechnica et Mechanica

2010

Vol. 32, nr 2

65-81

In frames of works connected with modernizing the outlet installations of the Pilchowice storage reservoir on the Bóbr River, the model investigations of side channel spillway were carried out. The investigations were preceded by analyzing the principles of the functioning of this type of installation and analytical calculations defining its capacity ability. The studies were carried out on a large-scale physical model with a full representation of the conditions of water inflow on side channel spillway and also the conditions of water outflow by multistage cascade. The results of model tests were compared with analytical calculations and on that basis a necessity of the reconstruction of this installation was shown. Such a reconstruction ensures the safety of the reservoir in terms of computational discharges in the current state of a technical solution of outlet installation, significantly exceeding its nominal capacity ability.