Author(s): E. Decsi; Gy. Szepessy
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Abstract: The Danube River Barrage System is under construction in Hungary and Czechoslovakia. The main parts of the system are: the Dunakiliti-Hrusov reservoir with the Dunakiliti Barrage, the Gabcikovo Hydropower Station and the Nagymaros Power Station. The Dunakiliti Barrage controls the water level of the reservoir and retains its unbroken ice cover until springtime melting. In case of an early flood wave, however, when broken ice may arrive from the upstream reaches of the Danube it should be passed through the Barrage. Ice breakers clear the way for the oncoming ice floats, however, due to the water level and slope changes caused by the intermittent hydropower production, also the ice cover on the flood plain might break up, float into the forebay causing ice jam. To retain the ice on the flood plain, an ice boom was applied. Its location, and arrangement forces were studied by a hydraulic model of 1:100 scales in both directions. The loads acting on the ice boom were determined by additional measurements on another physical model of 1:10 scales. After that, the statics of the structure was studied. Finally the stresses acting on the anchoring cables were determined.
Year: 1988