Bidirectional plastic geogrids are made of polymer materials that are extruded, formed into plates, punched, and then stretched longitudinally and horizontally. This material has great tensile strength in both longitudinal and transverse directions, and this structure can also provide an ideal chain system for more effective force bearing and diffusion in soil, suitable for large-area permanent bearing foundation reinforcement.
Biaxially stretched plastic geogrids are suitable for reinforcing various embankments and roadbeds, slope protection, tunnel wall reinforcement, and permanent bearing foundation reinforcement for large airports, parking lots, docks, and freight yards.
The main uses of bidirectional plastic geogrids are as follows:
1. Bidirectional geogrids are used to increase the bearing capacity of road foundations and extend their service life.
2. Bidirectional geogrids are used to prevent road (ground) collapse or cracking, and to maintain a beautiful and neat ground.
3. The bidirectional geogrid is used for convenient construction, time-saving, labor-saving, shortened construction period, and reduced maintenance costs.
4. Bidirectional geogrids are used to prevent cracks in culverts.
5. Bidirectional geogrids are used to enhance soil slopes and prevent soil erosion.
6. Bidirectional geogrids are used to reduce the thickness of the cushion layer and save costs.
7. Bidirectional geogrids are used to support the stability and greening environment of slope grass planting mats
8. Double directional plastic geogrid is used for livestock breeding and cage fish farming.
9. Bidirectional plastic geogrids are used for reinforcing mines and tunnels.
Construction method of bidirectional plastic geogrid:
Excavate the foundation bed, set up a sand cushion layer (with a height difference of no more than 10cm), roll it into a platform, lay a grid, and the longitudinal axis should be consistent with the main force direction. The longitudinal overlap should be 15-20cm, and the transverse overlap should be 10cm. The overlap should be tied with plastic tape and fixed to the ground with U-shaped nails every 1.5-2m on the laid grid. The laid geogrid should be backfilled with soil in a timely manner, and the number of layers of the laid geogrid depends on technical requirements.