IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Controlling a side weir without gates
Controlling a side weir without gates
The on-hand contribution gives an insight in an innovative way to control the discharge of a side weir. The purpose of the
side weir is to relief water of a little river into a retention basin during floods. The maximum inflowing discharge of 60 m3/s
has to be divided in 18 m3/s remaining water in the river and 42 m3/s relieved water. The remaining discharge of 18 m3/s
has to be ensured at all time. A further determining factor is the requirement that moving parts like gates or similar must
not be installed and log jams have to be avoided.
A physical model test - scaled 1:20 - has been performed in the hydraulic laboratory of Graz University of Technology to
find a solution for the described problem. A combination of culverts located at the downstream area of the side weir
enables a free flowing discharge up to about 16 - 18 m3/s which starts to retain and to spill over at this discharge.
Finally, the remaining water amount in the downstream river section stays relatively constant with increasing inflow and at
maximum discharge the problem specifications are fulfilled.
File Size : 316,233 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 14/08/2015
Download Now