Hydraulic level control by Hinged Flap Gate

The so-called Hinged Flap Gate is introduced. This gate is able to control automatically the upstream water elevation for free gate flow. Based on laboratory observations, the hydrodynamic pressure distribution on hinged gates was determined. Application of the equation of moments gives two conditio...

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Bibliographic Details
Published in:Proceedings of the Institution of Civil Engineers. Water, maritime and energy maritime and energy, 1998-06, Vol.130 (2), p.95-103
Main Authors: RAEMY, F, HAGER, W. H
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Exact sciences and technology
Hydraulic constructions
Marine
River flow control. Flood control
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Summary:The so-called Hinged Flap Gate is introduced. This gate is able to control automatically the upstream water elevation for free gate flow. Based on laboratory observations, the hydrodynamic pressure distribution on hinged gates was determined. Application of the equation of moments gives two conditions to be satisfied: the moment required by the counterweight, and the angle of the counterweight relative to the normal to the gate at the pivot. The performance of the device is described. Gate vibrations are demonstrated to be absent. The main application of the Hinged Flap Gate is in sewers and irrigation channels for controlling relatively small discharges. A historical note on the develop-ment of regulating gates is also given to show that the hydraulically controlled Hinged Flap Gate is a novel suggestion.
ISSN:0965-0946
1753-7819
DOI:10.1680/iwtme.1998.30478