Water barriers

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Water Barriers

Water barrier is a broad definition, consisting of different types of structures which can be divided into static and dynamic hydraulic structures. One of the main purposes of these structures can be controlled water management or water defense, for example in cases of high tides, storm surges, extreme rainfall or even in draught periods. There are many types of water barriers around the world. The design depends mainly on frequency of use, geometry, draught and geographical conditions.

Each of these different structures are having different configurations, geometry, closure mechanism, movements, closure path, load distributions and thereby requiring different sealing techniques.

We are able to consult and assist in the sealing challenges of the interfaces between all these different types of structures. 

 

Water Barriers sealing challenges:

We do have experience in the sealing solution of many and different types of hydraulic water barriers across the globe in different sizes and configurations. The sealing design can have an important impact on the drive system, maintenance and design lifetime of the hydraulic construction. Contact us for more information.

Lock Gate Sealing Solution

There are different types of water barriers and lock systems for hydraulic projects. Each type of barrier having a different configuration, geometry, closure mechanism, movements, closure path, load distributions and thereby requiring different sealing techniques.

Radial gate

The radial barrier is operational by rotating into 3 possible positions, open, close and maintenance position. Due to the allowance of this radial movement often one requires a combination of bottom sealing and vertical sealings ensuring watertightness of the barrier.

Sliding Gates

The sliding gate is opening and closing by a horizontal sliding movement. Depending on the location and configuration of the sealing method, the sealing has to be designed to cope with high compression loads, shear loads and relatively high friction forces working on the seals

Miter/Flap Gates

The Miter and Flap Gates, are opening and closing from a fixed rotation position, the sealing mechanism principle can be based on different sealing principles, depending on the designed configuration and the load distribution on the sealings.

Vertical Lifting Gates

The Vertical Lifting Gate is opening and closing by vertical movement of the gate. In these gates one can use the self weight of the seals to activate watertightness of the seals, and use self-activating lipseals at the vertical sides of the gate

Sector Gates

The Sector Gates are rotating from a recess landwards towards the opening of the river. This configuration delivers the widest possible opening range in the by pass of the river. Depending on the operating mechanism the sealings often exists from two or three sealing techniques.  

Visor Gates

The visor gates are constructed in an arch form and are used in the Dutch water management landscape. The Visor gate in its essence is a dynamic dam, which in dry seasons is used to hold sufficient water level in parts of the rivers, ensuring safe navigation. The visor gate has sufficient self-weight and therefore an engineered compression type of sealing is here in the preferred sealing option.

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