High Quality Geosynthetics Products And Materials Polyester Geogrid In Soft Foundation

Polyester geogrid is manufactured from creep resistant, high tenacity polyester yarn and warp knitting into grid based grey fabrics,
after coated with Oil PVC / Water PVC / Bitumen / SBR / Acrylic acid coating.

The role of polyester geogrid in soft foundation treatment

Polyester geogeogrid plays a role in soft foundation treatment mainly by reinforcing, dispersing loads and improving stability.

Reinforcement of soft foundation structure

1. geogrid interlocking effect

The mesh structure of the polyester geogrid forms a mechanical bite with the soil particles, limiting the lateral displacement of the soil through friction and interlocking effect to prevent the filler from sinking. For example, laying the geogrid in the soft soil roadbed can disperse the vertical load to a larger area and reduce local settlement.

2. Improve shear resistance

The high-strength tensile performance of the geogrid can enhance the shear resistance of the soft foundation and avoid soil sliding. Especially in scenes such as embankments and retaining walls, it can significantly improve the overall stability.

Suppressing uneven settlement

1. Uniform stress distribution

The plane mesh structure of the geogrid converts concentrated load into dispersed stress, avoiding uneven settlement caused by excessive local pressure on the soft base. For example, laying grids in the abutment foundation can prevent the bridge head from jumping.

2. Delaying reflective cracks

The low elongation (usually <13%) characteristic can reduce the damage of pavement temperature stress and load stress to the soft base, and delay reflective cracks in asphalt pavement.

Improve bearing capacity and long-term durability

1. Enhance foundation bearing capacity

The tensile strength and corrosion resistance (acid and alkali resistance, anti-aging) of polyester grids enable them to maintain structural stability under long-term loads and are suitable for high humidity and corrosive environments. For example, they are used to reinforce the soft foundation of dams in water conservancy projects and extend their service life.

2. Adapt to complex geological conditions

In areas with high moisture content or frozen soil, geogrids can be combined with fillers such as sand and gravel to form a composite foundation, improve soil drainage performance and prevent frost heave.

Construction convenience

1. Simplify the construction process

Polyester grid is light and flexible, and can be cut and overlapped on site (overlap width ≥ 10cm) without complex machinery. For example, self-adhesive grid can be directly compacted by rubber-wheel roller, reducing the fixing process.

2. Reduce costs

Compared with traditional replacement or pile foundation reinforcement, the grid treatment solution can reduce the amount of filler and reduce the project cost.

Typical application scenarios

1. Road engineering: reinforcement of soft soil roadbed and bridge abutment foundation.

2. Water conservancy projects: reinforcement of embankments and river channels.

3. Slope protection: reinforcement of embankment slopes and landslide control

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