Geocomposite Drainage Net for Dam Project in Guizhou

Geocomposite drainage net, also called drainage net, is a synthetic drainage medium that replaces one to two feet of traditional aggregate while offering efficient drainage under similar site loads. It provides a cost-effective and lightweight alternative to traditional aggregate materials, reducing the need for extensive aggregate use. Geocomposite drainage nets deliver reliable drainage performance and find applications in various construction and civil engineering projects. They offer an effective solution for achieving proper drainage while minimizing environmental impact and project costs.

BPM Geosynthetics is the leading geosynthetics manufacturer and supplier, we offer a wide range of geosynthetics including drainage net, geomembrane and geotextile with custom sizes at best factory price.

1. What Is Geocomposite Drainage Net?

Geocomposite drainage net combines multiple functional layers effectively. It merges geotextiles’ filtration with geonets’ drainage capacity. Typically, nonwoven geotextiles bond thermally to geonet cores. This integration creates a robust drainage solution. The material excels in water conductivity performance. It rapidly channels water away from structures. Consequently, it prevents dangerous water accumulation. Common applications include landfill drainage systems. It also serves roadbed and railway projects well. Tunnel constructions benefit from its drainage efficiency. Underground structures require its protective qualities too. Retaining walls gain stability through proper drainage. Even sports fields utilize this technology. The composite prevents soil erosion effectively. Moreover, it extends infrastructure lifespan significantly. By managing water flow properly, risks reduce. Structural integrity improves with controlled drainage. This engineered solution outperforms traditional methods. Civil engineering projects increasingly adopt it. Its versatility meets diverse construction demands. Water-related damages become preventable. The material represents modern engineering progress.

2. What Are Functions of Geocomposite Drainage Net?

Geocomposite drainage net serves multiple functions due to its unique structure. The nonwoven geotextile outer layer provides excellent filtration, separation, and protection capabilities. Meanwhile, the three-dimensional structure of the drainage net ensures efficient drainage.

2.1 Drainage

The primary function of geocomposite drainage net is to facilitate effective drainage. Its three-dimensional geonet structure allows water to flow freely, preventing water accumulation and potential damage to structures. This drainage capability is valuable in applications such as landfills, dams, railway stations, and other projects where efficient water management is crucial.

2.2 Filtration

The nonwoven geotextile layer serves as an effective filtration barrier. It permits water flow while blocking fine particles. This selective filtration prevents soil migration into the system. Consequently, the drainage capacity remains uncompromised over time. The geotextile’s porous structure enables consistent water permeability. Simultaneously, it retains silt and other particulates. This dual action maintains long-term system efficiency. Clogging risks are significantly reduced through this mechanism. The stable filtration preserves the geonet’s drainage channels. Water movement continues unimpeded through the composite structure. System longevity improves through proper particle retention. The filtration layer thus protects the entire drainage network. Performance remains consistent under various environmental conditions. This feature makes geocomposites reliable for critical applications. Infrastructure projects benefit from sustained drainage capability. The geotextile’s filtration is essential for system durability.

2.3 Separation

Geocomposite drainage net also serves as a separation layer in certain applications. It can be used to separate different materials, such as soil and drainage aggregate, preventing their mixing and ensuring the integrity of the overall system. This separation function is particularly beneficial in projects where different materials need to be contained or separated for proper functioning.

2.4 Protection

The nonwoven geotextile outer layer of the geocomposite drainage net provides protection to the underlying layers or structures. It acts as a barrier, preventing damage from external factors such as soil erosion, abrasion, or punctures. This protection function enhances the durability and longevity of the drainage system.

Geocomposite drainage net offers functions including drainage, filtration, separation, and protection. Its unique structure, combining geotextiles and geonets, enables efficient water management, prevents clogging, maintains stability, and provides long-term protection in various civil engineering and construction projects.

3. What Is Geocomposite Drainage Net Used For?

Geocomposite drainage net is used for a variety of applications that require effective drainage and water management. Some common uses of geocomposite drainage net include:

Landfills: Geocomposite drainage net is employed in landfill projects to collect and divert leachate, which is the liquid produced by the decomposition of waste. It helps prevent the accumulation of leachate and facilitates its proper disposal or treatment.

Road and Railway Construction: Geocomposite drainage net is used in roadbed and railway construction to provide efficient drainage and prevent waterlogging. It helps maintain the stability and durability of the infrastructure by channeling water away from the construction site.

Retaining Walls: Geocomposite drainage net is utilized in retaining wall structures to relieve hydrostatic pressure and prevent water buildup behind the walls. It promotes proper drainage, reducing the risk of structural damage and instability.

Sports Fields and Gardens: Geocomposite drainage net is commonly employed in sports field construction and garden landscaping to facilitate effective drainage. It helps prevent waterlogging, ensuring proper soil health and optimal growth conditions for plants or turf.

Tunnels and Underground Structures: Geocomposite drainage net is used in the construction of tunnels and underground structures to manage water seepage and prevent water accumulation. It helps maintain the structural integrity of the underground infrastructure and protects it from water-related damage.

Erosion Control: Geocomposite drainage net can be used in erosion control applications to stabilize slopes and prevent soil erosion. It allows water to drain efficiently, reducing the erosive forces acting on the soil surface.

4. Why Choose BPM Geocomposite Drainage Net for Dam Project?

BPM geocomposite drainage net was chosen for the dam project due to its favorable characteristics and suitability for the specific requirements of the construction. The primary reasons for selecting BPM geocomposite drainage net are as follows:

Effective Water Drainage: The dam project requires a reliable drainage system to manage water effectively and prevent any potential water accumulation. BPM geocomposite drainage net, with its 750gsm HDPE geonet composite layer and 200gsm nonwoven geotextile, offers excellent water drainage capabilities. The geonet structure allows water to flow freely, while the nonwoven geotextile acts as a filtration layer, preventing clogging and maintaining the flow of water.

Protection of Waterproof Lining System: To ensure the dam’s integrity, a 1.0mm HDPE smooth geomembrane was chosen as the waterproof bottom lining system. The nonwoven geotextile in the BPM geocomposite drainage net provides an additional layer of protection for the geomembrane, preventing scratches or damage during installation or subsequent construction activities.

Quality and Reliability: BPM is a reputable supplier known for providing high-quality geosynthetic products. Their geocomposite drainage net offers durability, strength, and longevity, ensuring long-term performance and reliability in demanding applications like dam construction projects.

Customized Solution: BPM recommended a specific configuration of 750gsm HDPE geonet composite layer with 200gsm nonwoven geotextile based on the project requirements. This customized solution tailored to the dam construction company’s needs and provided an optimal balance of drainage capacity, filtration, and protection.

5. Specification of Drainage Net for Dam Project in Guizhou

• Quantity – 130,000 square meters.
• Roll size – 4.6m*50m