
Geoquest offer solutions to public authorities and land owners for the protection and restoration of shorelines, and developed land. At an early stage, our engineers will work with you in assessing the local situation and proposing preventive solutions to mitigate both current and future risks.
Common preventive solutions include constructing sea walls, bulkheads, dykes, complemented by revetment systems.
Sea walls
Sea walls are efficient structures to prevent coastal erosion and other damages caused by waves and storm surges. Reinforced Earth® MSE waterfront structures are designed and built to resist the combined forces of water and water borne debris which can be highly destructive during and after storms. Reinforced Earth® panels combined with proper backfill materials ensure adequate drainage, especially when the structures are subjected to rapid variations of sea levels due to high tidal amplitudes. Wave deflectors can be integrated into the panels.
T-Wall® and TechWall™ precast retaining walls can also be used for the construction of sea walls, allowing for construction under water in some situations.
Bulkheads
Reinforced Earth®, T-Wall® and TechWall™ retaining walls solutions are well adapted to the construction of bulkheads.
Dykes
Dykes are sea defence structures used for the protection of low coast and coastal lands against floods as a result of tides, wave run-up or storm surges. TerraDyke™ structures are composed of other geosynthetic components such as geotextiles, antiscour aprons and anchor tubes. Site specific primary and secondary armour layers will complement the design to provide the adequate surface protection against erosion caused by waves and currents.
In specific situations for which the footprint has to be minimised or for high structures, Reinforced Earth® dykes, either with vertical or steep faces, are the solution allowing for proper adaptation to site conditions.
Revetments and articulated concrete blocks
TechRevetment™ fabric formed concrete mattresses will provide for wave and scour protection. They can be installed in under water conditions.
Reconstruction and rehabilitation of shorelines
Our TerraDyke™ geotextile tubes and geotextile bags can be used to re-build shorelines.
Engineering expertise and 120 years or more of service life
Geoquest offers unrivalled engineering expertise to provide you with the best design and supply package, coupled to commercial excellence that will make your next road development project a success.
Guaranteeing long-term life duration and minimum necessity for maintenance of the infrastructure is of outmost importance, and our designs are optimised based on the service life that is required.




