The friction effect of plastic geogrid in soil is much greater than that of other reinforced components. At the same time, the grid is mat shaped, which can fully contact with the soil, resulting in greater isolation and reinforcement effect. Therefore, plastic geogrid is an ideal component of reinforced retaining wall The construction of reinforced retaining wall with plastic geogrid can reduce the lateral pressure on the wall, thus greatly reducing the lateral deformation of the wall, making the whole reinforced retaining wall more stable, more beautiful, and saving costs.

As the geogrid production line equipment is composed of high-density polyethylene, it will not be eroded by acid-base, salt solution or oil at normal temperature; It will not be affected by water dissolution or microorganism. At the same time, the polymer properties of polyethylene are also sufficient to resist the aging caused by ultraviolet radiation. After the geogrid is stressed, the vertical and horizontal ribs work together, and the joints will not be cracked or damaged. In the actual project, after the compaction of the filler, it is not eroded by ultraviolet light and oxygen, which can fully meet the requirements of permanent project construction.

Compared with steel, geogrid has advantages in corrosion resistance and chemical resistance, but it is vulnerable to ultraviolet radiation, aging or temperature limitation (-50 ℃ ~ +80 ℃). Therefore, it is necessary to add an appropriate amount of carbon black into the manufacturing material of Geogrid to improve its weather resistance; In addition, it is necessary to take surface protection measures such as filling soil or plants in engineering application to improve the anti-aging performance of geogrid.

In the process of using the geogrid, due to the long-term stable tensile force, it causes the phenomenon of long-term creep. Therefore, the geogrid can not effectively play its due role of reinforcement and tension. It is of great significance to study the creep technology of Geogrid for engineering safety.