High Strength 3D Composite Drainage Geonet for Tunnel Drainage Road Construction and Soil Filtration
3D Composite Drainage Geonet is engineered for high performance drainage in infrastructure projects such as tunnels and highways. The composite structure provides a reliable pathway for water flow while preventing soil intrusion.
The core geonet creates continuous channels for water movement, while the bonded geotextile acts as a filtration barrier. This dual function design ensures stable drainage even in high pressure environments.
It is particularly effective in tunnel lining systems, where space is limited and traditional drainage materials are difficult to install. The lightweight design reduces transportation and installation costs.
| Parameter | Unit | Value |
|---|---|---|
| Material | — | HDPE + Geotextile |
| Tensile Strength | KN/m | ≥16 |
| Hydraulic Conductivity | m²/s | ≥3.0*10⁻⁴ |
| Peel Strength | KN/m | ≥0.17 |
| Geotextile Weight | g/m² | ≥200 |
| Width | m | 2 to 6 |
| Length | m | Custom |
| Load Capacity | kPa | 3000 |
| Standard | — | CJT452 |


- Strong drainage capacity
- Suitable for confined engineering spaces
- Lightweight and easy installation
- Reliable quality control
- Competitive export pricing
Q: Is it suitable for tunnels
A: Yes it is widely used in tunnel drainage.
Q: Can it handle high pressure loads
A: Yes up to 3000 kPa.
Q: Is it easy to install
A: Yes it reduces construction time.
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