Polyester geogrid is made of high-strength polyester industrial filament, warp knitted directional woven grid fabric and PVC coated geogrid. It is applied to soft soil foundation treatment and reinforcement of subgrade, dike and other projects, so as to improve project quality and reduce project cost. So in such a case, some people may think that the price will fall as a result. The tensile strength of the filament is higher than that of the short filament. Because of the softness of the filament, it has certain tear resistance and good main functions, such as reverse filtration, water filtration and reinforcement. Specifications range from 100g / m2 to 800g / m2. The main material is polyester fiber. The long or short fibers are laid into a network by different equipment and processes, and then the different fibers are interweaved with each other through processes such as weaving, binding each other and making the fabric standardized, so that the fabric is soft, full and thick, so as to meet the use requirements of different thicknesses. Because all of our considerations now are that only when people expand their production and society's demand is general, their prices will be raised, if the situation goes to the contrary. We only analyze the price according to the current situation. If in the future, his situation is totally different from what we analyze now.

Polyester geogrid is used to reinforce the soft soil subgrade of highway, railway, municipal road and other roads, which can effectively improve the strength of the subgrade and delay the reflection cracks of the road. Polyester geogrid can keep the slope flat and solid, and can also sprinkle a layer of high-quality soil to facilitate plant growth. Polyester geogrid shall be laid from top to bottom in the direction of main stress, so that the cell sheet weight is perpendicular to the road subgrade. Never lay crosswise. Riveting piles shall be nailed along the drainage ditch on both sides. Bamboo and wood piles can be used to open the lattice, and bamboo and wood piles can be used to stretch the lattice at the middle and bottom. Riveting piles at the top mainly play the role of hanging and riveting the lattice. Better materials, such as steel bars, shall be used. For example, for a 5cm cell, its riveting pile shall be 2 × 5cm + 30cm, 40cm long. The riveting pile of the fully opened 510cm cell assembly should be 2 × 10 + 30, and the 50cm long steel bar must be perpendicular to the slope. The length of the riveting pile is required to be 2 times of the height of the cell itself plus 30 cm. The other main functions are the tensioning chamber during construction, and the available materials are relatively simple.

Polyester geogrid has made a great breakthrough in the treatment of road bed diseases and the application of fixed loose medium. With the further understanding of the characteristics of polyester geogrid, it has been found that it has irreplaceable advantages of other geomaterials (geotextile, geomembrane, geogrid, geomold bag, geogrid, etc.). The active zone 1 of the polyester geogrid will still transfer the force to the transition zone 2. However, due to the lateral restriction of the cell wall and the reaction force of the adjacent cells, as well as the friction force between the filler and the cell wall, the lateral movement tendency of the transition zone 2 and the passive zone 3 is restrained, so that the bearing capacity of the subgrade can be improved. Through experiments, the apparent cohesion of medium dense sand can be increased by more than 30 times under the restriction of polyester geogrid. Obviously, if the shear resistance of subgrade material can be increased or the movement of three areas can be restrained, the bearing capacity of foundation can be improved, which is the limit principle of polyester geogrid. Its purpose is to improve the shear and friction resistance of foundation materials.