How does warp knitted polyester geogrid play a role in weak foundation treatment?

1. Composition and characteristics of warp knitted polyester geogrid
Warp knitted polyester geogrid uses high-strength polyamide industrial yarn, which is woven into a grid blank through warp knitting, and then processed through a special coating process. This geogrid has the following significant characteristics:

High tensile strength: Warp knitted polyester geogrid shows extremely high strength when subjected to tension, and can effectively resist foundation deformation and tensile stress of soil.

High tear strength: The material has extremely high tear resistance and is not easy to be torn during construction and long-term use, ensuring its durability.

Strong bonding with soil and gravel: Warp knitted polyester geogrid can form a strong bond with soil and gravel through special coating treatment, enhancing foundation stability.
2. The mechanism of action of Warp knitted polyester geogrid in soft foundation
In the treatment of soft foundation, the role of Warp knitted polyester geogrid is mainly reflected in the following aspects:

Enhance the bearing capacity of the foundation: Soft foundations, such as clay and silt, usually have poor bearing capacity and are prone to settlement and deformation. Warp knitted polyester geogrid can evenly distribute the load above the foundation to a larger range of soil through its high-strength grid structure, reduce local stress concentration, and significantly improve the bearing capacity of the foundation.

Reduce uneven settlement: Soft foundations are prone to uneven settlement under load, causing ground deformation or even damage. By laying Warp knitted polyester geogrid in the foundation, the grid and the foundation material form a composite structure, which enhances the integrity and stability of the soil and effectively inhibits the settlement and deformation of the foundation.

Prevent soil from sliding and instability: In foundation or embankment projects, soil may slide or become unstable due to external forces (such as water flow, vehicle load, etc.). Warp knitted polyester geogrid provides lateral and longitudinal bidirectional tensile constraints through its grid structure, limits the lateral displacement of the soil, enhances the stability of the foundation, and prevents the occurrence of sliding.

3. Application examples of warp knitted polyester geogrid in engineering
Warp knitted polyester geogrid has a wide range of applications, especially in soft foundation treatment projects. The following are several typical application examples:

Highway and railway roadbed reinforcement: In the construction of infrastructure such as roads and railways, warp knitted polyester geogrid is widely used in roadbed reinforcement projects.

Dam and water conservancy projects: Warp knitted polyester geogrid is also widely used in water conservancy projects, especially in dams, revetments and other projects, to prevent foundation sliding and soil erosion. In water conservancy projects with soft foundations, geogrids prevent landslides and subsidence of dams or revetments by enhancing the strength and stability of the foundation.

Reclamation and land reclamation projects: In reclamation and land reclamation projects, warp-knitted polyester geogrids are used to reinforce soft foundations in the sea area, reduce engineering risks caused by subsidence, and ensure the stability and safety of the project.