Hydraulic Engineering
Flood Protection Barriers
Supporting stable, protected and durable flood defence structures.
Geotextiles in Flood Protection Structures
Flood protection barriers are designed to protect infrastructure from rising water levels and extreme weather events. Whether used in dikes, levees, embankments or reinforced flood defence systems, these structures must remain stable and functional under changing hydraulic conditions.
Our needle-punched nonwoven geotextiles support flood protection barriers by combining separation, filtration, drainage, protection and reinforcement functions. Installed between soil, aggregate, drainage layers or erosion protection systems, the geotextile helps maintain the integrity of the different layers within the structure.
In flood protection applications, uncontrolled water pressure, soil migration or erosion can weaken the barrier over time. A geotextile layer helps retain fine particles while allowing water to pass through in a controlled way, reducing the risk of internal erosion and supporting effective drainage.
Key Benefits
- Separates soil, aggregate and protection layers within flood defence structures
- Supports filtration by retaining fine particles while allowing controlled water flow
- Helps reduce the risk of internal erosion and soil migration
- Contributes to effective drainage and reduced hydrostatic pressure build-up
- Helps maintain the long-term integrity of flood protection barriers
Example of a Layer Structure
In flood protection barriers, nonwoven geotextiles can be used in different positions depending on the type of structure, soil conditions and hydraulic requirements. They are often applied as filter, separation, drainage or protection layers.
- Water-facing erosion protection layer
A protective cover such as riprap, concrete blocks or other erosion-resistant materials that shields the structure from flowing water, waves or impact. - Granular filter or drainage layer
A mineral layer that supports controlled water movement and helps reduce pressure within the structure. - Nonwoven geotextile functional layer
Installed to separate materials, support filtration, protect sensitive layers and help prevent fine soil particles from migrating into the drainage or protection layer. - Embankment fill or structural core
The main body of the flood protection barrier, designed to provide mass, stability and resistance against water pressure. - Foundation soil
The natural or prepared ground that supports the flood defence structure.
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