Accompanying Physical Studies for the Fish Pass at the Elbe River Barrier near Geesthacht

作者：Lehmann Boris^*; Seidel Frank; Laekemaeker Katrin; Nestmann Franz

来源：Wasserwirtschaft, 2012, 102(4): 34-39.

DOI：10.1365/s35147-012-0244-7

During the planning of the new vertical slot passage at the barrier near Geesthacht, the given boundary conditions brought up certain questions which require the use of a physical hydraulic model in order to be answered in detail: The pre-optimization of the slot geometry, which was part of the numeric variation study, was validated with the physical model in terms of flow patterns and velocities. Moreover, the determination of decisive hydro-dynamic loads was necessary for the static calculations of certain elements of the structure. Also, we developed an appropriate design for the additional water inlets which avoids any alternation of the main flow signatures in the corresponding basins of the slot passage. The installation of monitoring devices required detailed studies concerning the hydraulic effects of the guiding screen. We proved the passability of the slots for weak fish species by means of a large scale ethohydraulic limited area model which was calibrated with the flow parameters of the physical model.

• 出版日期2012