Three-Dimensional Geogrid Cores The Perfect Combination Of Strength And Drainage

Three-dimensional geogrid cores are a new type of geosynthetic material, mainly made from high-density polyethylene (HDPE) as the main raw material, combined with carbon black, ultraviolet inhibitors, and antioxidants. They are manufactured through a special extrusion molding process. This material has extremely high rigidity and good drainage performance. At the same time, the non-woven geotechnical fabrics with needle-punched holes attached to both sides have good permeability, mechanical properties, and chemical stability, as well as a high friction coefficient. This allows three-dimensional geogrid cores to play an important role in civil engineering.

Structural Features of Three-Dimensional Geotechnical Mesh Core

The unique three-dimensional structure of the three-dimensional geotechnical mesh core allows it to withstand high compressive loads throughout its use while maintaining a relatively thick thickness, providing good water permeability. Its main features include:

1. Thickness: The middle three-dimensional geotechnical mesh core typically includes a thick vertical rib, as well as one oblique rib each at the top and bottom.

2. Materials: Made primarily of high-density polyethylene (HDPE), providing sufficient strength and durability.

3. Permeability: The three-dimensional geotechnical mesh core has high permeability, capable of quickly draining groundwater from the road.

4. Filtering and Protective Functions: The geotechnical fabric adhered to both sides provides filtration, while the geotechnical net offers drainage and protection.

Application Scope

Landfill

The three-dimensional geotechnical mesh core is widely used in landfills. It can be used as a drainage layer and a permeability testing layer to prevent leakage of the liner system and ensure the safety of the landfill. Due to its high drainage performance, the use of geosynthetic composite drainage mesh is not limited by the slope of the side.

Highway and Railway Drainage

The three-dimensional geotechnical mesh core is also widely used in the drainage systems of highways and railways. It can be used as a drainage layer for roadbeds and road surfaces, helping to quickly drain rainwater and reduce road damage caused by waterlogging. In addition, it can also be used for tunnel drainage and underground structure drainage.

Retaining Wall Drainage

The three-dimensional geotechnical mesh core can also be used as a drainage layer for retaining walls, helping to drain water behind the wall, preventing soil settlement, and improving the stability of the retaining wall.

Summary

In summary, three-dimensional geotechnical mesh cores, as high-performance geosynthetic materials, possess excellent drainage, filtration, and protection functions. They are widely used in various civil engineering projects. Their unique design and material selection make them the preferred material for addressing drainage issues under complex geological conditions.

Product Specification and Technical Index

(CJ/T 452—2014)