Tyrolean weir
The Tyrolean weir is one of the permanent weirs and was developed in particular for mountain streams in the Alps with large, coarse debris and steep slopes. The Tyrolean weir is only used to a small extent for water stowage, much more it is used for water extraction and z. B. Transmission to a turbine of a hydropower plant . The debris held back in the forecourt and in the desander is fed back into the flowing water through a flushing opening. In high mountain areas, it has become established to install an additional rockfall rake in order to protect the structure itself.
Since the drain is usually in a running state, a stilling basin can be omitted, but there should be flowing conditions at the inlet, so a calming basin is required.
literature
- Jürgen Giesecke, Emil Mosonyi , Stephan Heimerl: Hydropower plants. Planning, construction and operation . 5th updated and expanded edition. Springer, Berlin et al. 2009, ISBN 978-3-540-88988-5 .
- Kurt Lecher, Hans-Peter Lühr, Ulrich CE Zanke: Pocket book of water management . 8th completely revised edition. Vieweg, Wiesbaden 2003, ISBN 3-528-02580-8 .
- Theodor Strobl, Franz Zunic: Hydraulic engineering. Current principles, new developments . Springer, Berlin et al. 2006, ISBN 3-540-22300-2 .