Geotextile, as the core filtering material in engineering construction, plays an irreplaceable role in fields such as water conservancy, transportation, and environmental protection due to its excellent filtering performance. Its performance advantages and application value are reflected in multidimensional technical characteristics and practical application scenarios.
The core advantage of geotextile filtration lies in its precise ability to control water and intercept particles, which is attributed to its scientific structural design. Through reasonable pore size distribution, geotextiles can achieve the dual goals of smooth water flow and effective interception of fine particles, effectively avoiding the occurrence of piping in engineering. In practical applications, the equivalent pore size of geotextile needs to be accurately matched with the particle size distribution of the filtered soil, usually controlled at 1-3 times the size of the protected soil fine particles, to ensure water efficiency and firmly lock in the soil fine particles, ensuring long-term stability of the engineering structure.
The filtration performance of different types of geotextiles has its own emphasis, adapting to diverse engineering needs. Needle punched non-woven geotextiles have a porous structure formed by random interweaving of fibers, with high porosity and uniform distribution, strong water permeability, and are widely used in filtration engineering in general soil environments; Woven geotextile is precisely woven through latitude and longitude, with a tight structure that can maintain stable shape and longer filtration performance in high-pressure and strong water flow scenarios; Composite geotextiles combine the advantages of different materials to enhance filtration efficiency and mechanical properties, making them suitable for complex and harsh engineering environments.
The stability of geotextile filtration performance is also worth paying attention to. Its synthetic fiber materials, such as polyester and polypropylene, have excellent corrosion resistance, aging resistance and biological erosion resistance. In complex environments, such as acid-base soil, high salt water, etc., it can maintain stable filtration performance for a long time, and will not significantly decline due to environmental erosion. Even in long-term use, as long as the selection is reasonable and the construction is standardized, geotextiles can effectively delay pore blockage, maintain stable water filtration capacity, and meet the needs of various long-term engineering applications.
Post time: Dec-01-2025