3D geocomposite drainage · leachate collection
Composite Drainage Net: Composite drainage net is a 3D HDPE core laminated with geotextile filter(s) that drains water while preventing clogging by fines. Landfill leachate collection commonly uses 4-6mm core with 600-1000 g/m² total weight; tunnel and subgrade drainage uses 3-5mm. Install with flow direction, overlap ≥100mm, connect cores and wrap with fabric; it can replace or reduce gravel drainage layers.
Composite drainage net combines a 3D HDPE drainage core with bonded geotextile filters on one or both sides. It conducts leachate or groundwater while filtering fines, replacing thick gravel drains. Yurun supplies 2-6mm core thickness in 400-1200 g/m² total weight.
| Item | Specification |
|---|---|
| Core thickness | 2 / 3 / 4 / 5 / 6mm |
| Total weight | 400-1200 g/m² |
| Composite | Single or double sided geotextile |
| Width | 1m-4m |
| Core material | HDPE, chemical & UV resistant |
| Filter | Filament or staple nonwoven |
| Function | Drainage + filtration in one layer |
| Type | Features | Application | Typical works |
|---|---|---|---|
| Landfill leachate drain | 4-6mm core, double fabric | Leachate collection | MSW / HW / fly-ash landfills |
| Tunnel drain | 3-5mm core | Behind-lining drainage | Tunnels, metro, caverns |
| Subgrade drain | 3-5mm core | Groundwater conduction | Roads, railways, soft ground |
| Closure cover drain | 3-4mm core | Rainwater conduction in covers | Landfill closure, tailings closure |
| Common problem | Yurun Geosynthetics solution |
|---|---|
| Thick costly gravel drains | Millimeters-thin composite replaces or reduces gravel |
| Clogged drainage paths | Fabric filters keep fines out |
| Rising leachate head | High transmissivity lowers liquid level quickly |
| Slope water loads | Downslope channels reduce water load on liner |
Note: the sequence above is general practice. Final parameters follow the project design and site conditions; free technical guidance is provided.
Dezhou Yurun Geosynthetics Co., Ltd. is a source manufacturer with its own geomembrane and geotextile production lines — not a trading company. Composite Drainage Net is produced and inspected to current national standards with third-party batch test reports. Common specifications are kept in stock, and cut-to-size production is available against your layout drawing. Nationwide supply and export, with free selection advice and welding guidance.
In most landfill and tunnel designs it can replace or reduce gravel layers, saving haulage and time; final decision by designer based on required transmissivity.
Commonly 4-6mm core with 800-1000 g/m² total weight at the base collection layer.
By core thickness, total weight, width and quantity. Send design parameters for a quote: +86 13105341718.
Dezhou Yurun Geosynthetics Co., Ltd. is a source manufacturer of geosynthetic anti-seepage materials, located in the geosynthetic industrial cluster of Lingcheng District, Dezhou City, Shandong Province, China. We supply HDPE geomembrane, pond liners, composite geomembrane, filament and staple geotextile, tunnel waterproof board, composite drainage net, sodium bentonite GCL, ecological bags and cement blanket to projects across China and overseas.
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Same number: 13105341718
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HDPE geomembrane · pond liner · composite geomembrane · geotextile · GCL · drainage net · geobag · cement blanket · tunnel board
GB/T standards · In stock · Custom sizes · Free technical support · Worldwide delivery
+86 13105341718 (Mr. Yang · WeChat / WhatsApp)
