Biaxial Plastic Geogrid for Subgrade Reinforcement

The biaxial plastic geogrid (Contact: 188-5385-9699) is made from high-molecular polymers through extrusion, sheet forming, punching, and subsequent longitudinal and transverse stretching. This material boasts high tensile strength in both longitudinal and transverse directions. Its structure forms an ideal interlocking system in soil that effectively bears and diffuses forces, making it suitable for large-area permanent load-bearing subgrade reinforcement.

Characteristics of Biaxial Stretched Plastic Geogrid

Biaxial stretched plastic geogrid features high tensile strength in both longitudinal and transverse directions. In soil, its structure provides an ideal interlocking system for efficient force bearing and diffusion, and it is applicable to large-area permanent load-bearing subgrade reinforcement.

Engineering Applications of Biaxial Stretched Plastic Geogrid

It is suitable for reinforcement of various dams and subgrades, slope protection, tunnel wall reinforcement, subgrade reinforcement of large-scale permanent load-bearing facilities such as airports, parking lots, and dock freight yards, as well as reinforcement of mines and tunnels.

1. Enhance the bearing capacity of road (subgrade) foundations and extend their service life.

2. Prevent road (ground) surface collapse or cracking, maintaining a neat and attractive ground appearance.

3. Facilitate convenient construction, save time and labor, shorten construction period, and reduce maintenance costs.

4. Prevent cracking of culverts.

5. Reinforce soil slopes and prevent soil erosion.

6. Reduce cushion thickness and save construction costs.

7. Support the stability of slope grass-planting mesh mats and improve environmental greening.

8. Can replace metal mesh for use as false roof mesh in coal mines.

9. Suitable for slope protection of railways and highways.

Engineering Cases

Railways, Expressways

Construction Method

1. Excavate the subgrade bed and lay a sand cushion (with height difference not exceeding 10 cm), then compact it to form a platform.

2. Lay the geogrid with its longitudinal direction aligned with the main stress direction. The longitudinal overlap should be 15–20 cm and the transverse overlap 10 cm. Secure the overlapping sections with plastic straps.

3. Fix the laid geogrid to the ground with nails every 1.5–2 meters.

4. Backfill soil on the laid geogrid in a timely manner. The number of geogrid layers depends on technical requirements.

Definition of Geogrid Mesh

Geogrid mesh refers to a two-dimensional grid or three-dimensional grid screen with a certain height, made from high-molecular polymers such as polypropylene and polyvinyl chloride through thermoplastic molding or compression molding. It is called geogrid when used in civil engineering projects.

Geogrid meshis a major type of geosynthetic material. Compared with other geosynthetic materials, it has unique performance and functions. It is commonly used as reinforcement for reinforced soil structures or composite materials.

Mesh geogrids are classified into four main categories: plastic geogrid, steel-plastic geogrid, glass fiber geogrid, and glass fiber-polyester geogrid.