Противозасорные дренажные сетки - важнейший компонент дренажа полигонов ТБО

Drainage net Core Advantages

Combined anti-clogging design with drainage net:

The drainage net has high modulus, high tensile strength, and anti-clogging properties, with a surface aperture of ≤0.15 mm.Intercept sediment while maintaining a permeability rate of ≥5.0×10⁻² m²/s.

High-pressure-resistant drainage mesh core

Three-dimensional ribbed structure

compressive strength ≥830 kPa (ASTM D6364); deformation rate <10%; water conductivity retention rate >80% over 100h.

Full chemical resistance

After soaking in 10% sulfuric acid/NaOH for 30 days, the tensile strength retention rate is >90% (ASTM D7238). Applicable environment: pH 2~12.

Product Application Fields

Civil Engineering and Infrastructure Construction:

Railway Subgrade Drainage. In soft soil or permafrost areas, drainage networks use anti-clogging structures to prevent fine-grained soil from blocking, maintaining long-term drainage efficiency and avoiding subgrade settlement caused by water accumulation. Their chemical corrosion resistance can withstand erosion from de-icing agents and underground salts, extending the service life of roads.

Tunnel Engineering:

Tunnel seepage water often contains silt and sand, which can easily clog traditional drainage pipes. The multi-layer gradient filtration design of the anti-clogging drainage net can intercept impurities, while its structural elasticity releases water pressure. Combined with the high compressive strength of the net core, it can adapt to the complex load environment of tunnels.

Environmental engineering:

Leachate drainage of solid waste landfill. Leachate contains high concentrations of organic matter and acidic substances, and ordinary drainage materials are prone to corrosion and failure. The anti-clogging drainage net uses acid and alkali resistant materials to resist chemical erosion, while its anti-clogging structure prevents sludge adhesion, ensuring the long-term stable operation of the leachate collection system.

Contaminated soil barrier engineering:

Drainage nets are embedded in vertical impermeable walls to quickly discharge contaminated groundwater using their efficient water-conducting capacity, thus preventing the spread of pollutants.

CONCLUSION

Geosynthetics are indispensable “safety guardians” for modern sanitary landfills. HDPE geomembranes, GCLs, geocomposite drainage nets, geotextiles, and other materials work together to construct efficient and reliable seepage barriers, drainage channels, and covering systems. Their successful application relies on rigorous scientific design (with particular attention to slope stability and material performance reduction), strict material quality control, standardized and meticulous construction operations (especially welding), and comprehensive long-term monitoring. With technological advancements, the application of intelligent geosynthetics (integrated sensors) in areas such as leakage monitoring is also receiving increasing attention, further enhancing the safety and intelligent management of landfills.