详情介绍：
Polyester filament spunbonded needled geotextile is a kind of geosynthetic material applied in
geotechnical engineering and civil engineering. It is made by the method of polyester filament web
formation and consolidation, and its fibers are arranged in a three-dimensional structure. In addition
to having excellent mechanical properties, it also features good longitudinal and transverse drainage
performance and elongation performance, as well as high chemical stability in terms of acid and alkali
resistance and aging resistance. At the same time, it also features a wide pore size, a tortuous pore
distribution, excellent permeability and filtration performance.
Product features
1. Reverse filtration function: Reverse filtration refers to the process of allowing liquid to pass through while
preventing the loss of soil materials under seepage pressure. Polyester filament square bonded needled
geotextile can replace the traditional sand and gravel filter layer, featuring reduced engineering volume,
convenient construction, and high speed.
2. Drainage function: Drainage refers to the utilization of the permeability of materials to allow water to
pass through their permeable channels and be discharged from the soil or geotextile structure. Polyester
filament spunbonded needled geotextile can replace traditional drainage materials such as gravel or
concrete pipes. It is convenient to construct, low in price and reliable in quality.
3. Isolation function: Isolation is to prevent adjacent different media from mixing. Using PolyXyan long-fiber
spunbonded needled geotextile for isolation between different media can maintain the stability and integrity
of each medium and structure.
4. Reinforcement function: Reinforcement involves placing materials with certain tensile strength within the
soil to improve its performance. The use of polyester filament spunbonded needled geotextile as reinforcement
material can achieve the purpose of enhancing the strength and stability of soil, is convenient for construction
and has a good effect.
Application scope
1. Reverse filtration of water conservancy project embankments and slopes, isolation and anti-seepage of channels;
2. Foundation height adjustment, reverse filtration, drainage, soil slopes, retaining walls and pavement reinforcement
and drainage for highways, railways and airport runways;
3. Soft foundation treatment for port engineering, reinforcement and drainage of beach embankments, seaport wharfs
and breakwaters;
Polyester filament geotextiles have been widely used in infrastructure construction and are gradually being applied to
a wider range of fields.
Construction method
It can be laid by manual rolling or mechanical means. The fabric surface should be flat and an appropriate allowance
for deformation should be left. The laying of long-fiber geotextiles is usually carried out by several methods such as
lapping, sewing and welding. The width of sewing and welding is generally over 0.1m, and the lap width is generally
over 0.2m. Long-fiber geotextiles that may be exposed for a long time should be welded or sewn.