Dyke construction

The roles and advantages of geosynthetics in modern dyke designs are many.  geosynthetic clay liners (GCLs) are used as waterside sealing systems for dyke
slopes and forelands. This geosynthetic barrier solution provides a cost-effective, durable alternative to conventional mineral seals (e.g., compacted clay).   
Filter geotextiles such as increase the working life of the drainage layer and prevent piping below dykes. Geogrids increase a dyke’s external stability and
reinforce affiliated road bases. These solutions also reduce the potential impact of differential settlement in a dyke body.    Furthermore, the construction and
load-transfer efficiency of geogrid reinforcement enables slopes and walls to be constructed on the water or landside of a dyke with a minimal construction
footprint, making reinforcement ideal for sites with limited space.

All of these geosynthetics – GCLs, geotextiles, geogrids – provide proven, site-adaptable technical solutions.  And, as geosynthetic design and specification is

rooted in repeatable data, documentation is readily available for all products to ensure they meet or exceed a project’s minimum technical requirements.

High swelling sodium bentonite powder ensures exceptional sealing performance

Encapsulated bentonite powder protected from piping and erosion

Self-sealing of the GCL and overlaps. Resistance against desiccation

Multidirectional shear stress transfer

Robust against installation damage

Low installation costs compared to compacted clay layers

Long-term filter efficiency of the geotextile

Prevents piping

Selected products are BAW-tested based on the „Guidelines for Testing Geotextiles for Navigable Waterways” (RPG)

Fast and easy installation by unrolling

For underwater installation, sandmats are available

Economic and lightweight solution

Provides an immediate interlocking with the surrounding soil

High frictional properties further enhance the structural strength

Flat monolithic bars are extremely robust and resistant to dynamic loads

Combines different functions in one product: reinforcement and stabilisation with geogrid and filtration/separation with nonwoven geotextiles

Can be placed directly on soft subsoil and provides separation and filtration

Offers superior chemical resistance, low creep tendency, and extremely high strength at low elongation (high modulus)

Improves external stability of the dyke

Reduces differential settlements of dyke bodies and roads

Different types of facings available for reinforced steep slopes and walls

Inclinations up to 45° can be installed without special facing elements

Inclinations up to 70° can be installed using a “wrap-around” construction method

Inclinations up to 90° can be designed using facing elements made of natural stones, gabions, crushed rocks or prefabricated concrete units