The bidirectional plastic geogrid is formed by extrusion, sheet forming, and punching processes, followed by longitudinal and transverse stretching of high molecular polymer. This material boasts significant tensile strength in both directions, offering an ideal interlocking system for force distribution and transfer in soil, suitable for reinforcing large-area foundations. It is applicable for reinforcing embankments, roadbeds, slope protection, and reinforcing tunnel walls, as well as for reinforcing foundations under large airports, parking lots, and cargo yards.

Construction Method

Excavate the foundation bed, set a sand cushion layer (no more than 10cm difference in elevation), compact it into a platform, lay down the grid, and ensure the longitudinal axis aligns with the main load-bearing direction. The longitudinal overlap should be 15-20cm, and the transverse overlap 10cm. Secure the overlaps with plastic strips, and fasten the laid geotextile grid to the ground with U-shaped nails every 1.5-2 meters. The geotextile grid should be filled with soil promptly, and the number of layers laid depends on the technical requirements.

Bidirectional geogrids are used to increase the bearing capacity of road (or foundation) bases, extending their service life.

2. Bi-directional geogrids are used to prevent road or ground collapse or cracking, maintaining the ground's aesthetic and orderly appearance.

3. Bi-directional geogrids facilitate construction, saving time and effort, shortening project duration, and reducing maintenance costs.

4. Bi-directional geogrids are used to prevent cracks in culverts.

5. Bi-directional geogrids are used to reinforce soil slopes and prevent soil and water erosion.

6. Bi-directional geogrids are used to reduce the thickness of the cushion layer, saving on construction costs.

7. Bi-directional geogrids are used to enhance the stability of slope grassing matting for green environment.