Non-woven geotextiles are mainly divided into staple needle-punched non-woven geotextiles and filament spun-bonded non-woven geotextiles. Nonwoven geotextiles are permeable geosynthetics made of synthetic fibers by needling or spinning. It is one of the new geosynthetics.
Geotextiles are used to isolate building materials with different physical properties, such as soil and sand, soil and concrete. Make two or more materials do not lose, do not mix, maintain the overall structure and function of the materials so that the bearing capacity of the structure is strengthened.
When water flows from fine soil layer to coarse soil layer, good permeability and water permeability of geotextiles are used to make water flow through, and effectively intercept soil particles, fine sand, small stones and so on, so as to maintain the stability of soil and water.
Geotextiles have good water conductivity. It can form drainage channels inside the soil and discharge excess liquids and gases from the soil structure.
Geotextiles are used to enhance the tensile strength and deformation resistance of soil and to enhance the stability of building structures.
When the water scours the soil, geotextiles can effectively diffuse the concentrated stress, prevent the soil from being destroyed by external forces and protect the soil.