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|Hydraulic Model Tests of Beška Bridge Piers on the Danube|
Client: Alpine Ltd.
Team of researchers: Novica Petrovic, B.Sc. C.E., Milan Rula, B.Sc. C.E.
Following the construction of the first bridge on the Danube River near Beška, significant erosion of the river channel was noticed at the base of the piers, which threatened their stability.
A new bridge is currently being built in the close proximity of the existing one, and the location of its pier footings dramatically alters hydraulic conditions, which in turn drive local erosion. Therefore, prior to beginning work on this project, the building contractors decided to evaluate their design concept using a physical model.
A partial 1:40-scale hydraulic model has been constructed at JCI's Hydraulics Laboratory, with the goal of determining the degree of erosion which would occur around the piers of the new bridge, and assessing the effect of the piers of the new bridge on erosion around the piers of the old bridge.
Based on the model test outcomes, temporary and permanent measures have been recommended to protect the piers from erosion, and the building technology has been modified accordingly.