Geotextile tubes are large tube like structures fabricated from high strength geotextile with soil-in-fills. Geotextile tube is formed in situ by the hydraulic pumping of local soil into the prefabricated geotextile tube. This leads to a flexible, monolithic, continuous structure that is highly resistant to water currents. Sand is widely used as the soil in-fill material because of its low compressibility but other hydraulically pumped soil types can be used. Geotextile tubes are normally characterized in terms of theoretical diameter.
Geotextile bags are relatively smaller sized bags fabricated from appropriate geotextiles and filled with sand or any suitable soil.
The geotextile used to make geotextile tubes and bags has fine pore sizes to enable retention of the soil-infill but also has high permeability to enable easy exit of water during the hydraulic filling stage.
The geotextile has high tensile strength to enable it to resist the tensile stresses occurring during hydraulic filling and maintain its structure shape.
Construction of groynes, breakwaters, dykes
Bed and bank protection.