Non-woven Geotextile Filament or staple fibers are laid into a network through different equipment and processes, and different fibers are interwoven and intertwined through acupuncture and other processes to standardize the fabric, so that the fabric is soft, plump, thick and stiff, so as to meet the use requirements of different thicknesses. Non woven geotextiles have good fabric clearance and adhesion, As the soft fiber has certain tear resistance, good deformation adaptability, and good plane drainage capacity, the soft surface with many gaps has a good friction coefficient, which can increase the adhesion of soil particles, prevent the passing of fine particles, prevent the loss of particles, and remove excess water, the surface is soft and has good protection ability. They can all play a very good role in filtering, isolation, reinforcement, protection, and so on. They are widely used geosynthetics. The tensile strength of filament is higher than that of staple, which can be selected according to specific requirements.
Non woven geotextile: standard: GB/T 17638-2008, code: SNG Representation method: SNG600-6;
Filament spunbonded needle punched nonwoven geotextile: standard G B/T 17639-2008 Code: FNG
application area
Water conservancy projects: seawalls, river levees and lake levees up to standard; Reservoir reinforcement works; Reclamation project; Flood control and rescue.
Highway * * * Airport project: soft foundation reinforcement; Slope protection; Pavement anti reflection crack structural layer; drainage system ； The Green Belt.
Electrical engineering: nuclear power plant foundation engineering; Thermal power ash dam project; Hydropower project.
Laying method of non-woven geotextile:
1.1 Manual or mechanical roll paving; The cloth surface shall be flat, and appropriate deformation allowance shall be reserved.
1.2 Lapping, sewing and welding are usually adopted. The width of stitching and welding is generally more than 0.1m, and the lap width is generally more than 0.2m. Geotextiles that may be exposed for a long time shall be welded or stitched.
1.3 The filament geotextile can also be connected by hot air welding, that is, the hot air gun is used to heat the connection of two pieces of cloth at a high temperature in an instant, so that their parts can reach the melting state, and a certain external force is immediately used to make them firmly bonded together. Hot bonding cannot be carried out in wet (rainy and snowy) weather. The smaller width is 10cm when sewing, 20cm when natural lapping and 20cm when hot air welding.
1.4 For the sewing, the suture with the same quality as the geotextile shall be used, and the suture shall be made of materials with stronger resistance to chemical damage and ultraviolet light.
