Hdpe geocell is a three-dimensional mesh structure made of high-density polyethylene (HDPE) or other synthetic materials, welded by ultrasonic waves. This structure has multiple advantages, including lightweight material, wear resistance, stable chemical properties, resistance to light and oxygen aging, acid and alkali resistance, and is suitable for different geological conditions such as soil and desert. The main functions of hdpe geocell include providing high lateral restraint, anti slip, and anti deformation, effectively enhancing the bearing capacity of the roadbed, and dispersing loads. Its scalability makes transportation and storage volume small, allowing for local materials to be used during construction and reducing construction costs. The geometric dimensions such as thickness, height, and welding distance of the geogrid can be adjusted according to engineering needs to meet different engineering requirements.