China Drainage Geocomposite Manufacturers, Suppliers, Factory

Why Choose Us?

Quality Assurance
All of our geogrid products are CE-certificate,and manufactured at ISO 9001 certified manufacturing soil reinforcement geogrids consistently meets demanding QA/QC requirements.Our Products are tested to rigorous ASTM standards both in-house.We have established a national-standard laboratory for in-house quality control. We built a strict quality control system in all aspects from raw materials testing and production processes to final product quality testing.

Professional Service
As a leading manufacturer of geosynthetics materials, we have been exported geogrid to more than 50 countries and regions abroad. On this basis, we continue to develop and provide geosynthetics products with excellent performance and professional technical services.

One-stop Geosynthetics Products
We provide one-stop geosynthetics products and solutions to global customers. Feicheng Lianyi Geosynthetics has supplied a wide range of effective and state-of-the-art Geomembranes, Geotextiles, Geocells, Geogrids to more than 50 countries and regions abroa.

Short Delivery Time
Now we own 50 sets of facilities,include 21 sets of Fiberglass Geogrid & Polyester Geogrid Production lines (include different widths of 4 meters,5meters,6meters), 9 sets of PP biaxial Geogrid Production lines (include different widths of 4 meters,5meters,6meters), 3 sets of PP & HDPE Uniaxial Geogrid Production lines, 4 sets of Steel-Plasti ccomposite Geogrid Production lines,3 sets of needlepunched Non woven geotextile & Spunbonded Nonwoven fabric ,2 Sets of Composite production lines and some production lines for Woven geotextile,HDPE Geomembrane,HDPE Geocell,Geonet etc,intotal 50 sets of machines currently,that's definitely the largest scale in China.

Tri Planar Geonet Composite with Geotextile
Are made of a unique tri-dmension geonet adhibited geotextile on both sides.it has the property of geotextile (filtration function ) and geonet (drainage and protection )
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Three Dimensional Composite Drainage Network
Tri Planar Geonet Composite With Geotextile consist of a geonet heat bonded with a nonwoven needle-punched geotextile
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Two Dimensional Composite Drainage Geonet
Two - Dimensional Geocomposite HDPE Geonet Features Its anti-compression capacity is much larger than common geonet for drainage.
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What is Drainage Geocomposite?

Drainage geocomposites typically comprise a drainage core with a Polypropylene (PP) geotextile laminated to one or both sides, and are typically characterized by their core type. They are a lightweight, cost-effective and have equivalent or better drainage capacity compared to more traditional granular drainage solutions wrapped in a geotextile or encased within porous concrete.

Advantages of Drainage Geocomposite

Enhanced performance
Drainage geocomposites are engineered materials designed to provide specific functions and properties. By combining multiple geosynthetic components, they offer enhanced performance compared to traditional construction materials. drainage geocomposites can improve filtration, drainage, separation, reinforcement, and other geotechnical functions, leading to more efficient and durable structures.
Versatility
Drainage geocomposites can be tailored to meet the requirements of various applications. They offer flexibility in terms of composition, thickness, and configuration, allowing engineers to select the most suitable drainage geocomposite for a specific project. This versatility makes them applicable in a wide range of geotechnical and civil engineering applications.
Cost savings
Drainage geocomposites can lead to cost savings in construction projects. By providing multiple functions in a single material, they eliminate the need for using multiple individual products. This simplifies the construction process, reduces labor, and saves installation time and costs. They can also help mitigate long-term maintenance expenses by improving the durability and performance of structures.
Environmental benefits
Drainage geocomposites can contribute to environmentally friendly construction practices. For example, drainage geocomposite drainage systems help manage stormwater runoff, reducing the impact on natural waterways and preventing soil erosion. Additionally, they can be made from recycled materials, promoting sustainability and reducing the demand for virgin resources.

Improved construction efficiency

Drainage geocomposites are lightweight and easy to handle, making them convenient for installation. They can be prefabricated or factory-assembled, allowing for faster and more efficient construction. They also offer consistent and predictable performance, reducing the risk of construction errors and ensuring the desired engineering outcomes.

Longevity and durability

Drainage geocomposites are designed to withstand harsh environmental conditions and exhibit long-term durability. They are resistant to chemical degradation, biological attack, and uv radiation. By providing protection and reinforcement to underlying materials, drainage geocomposites help extend the service life of structures.

Improved geotechnical properties

Drainage geocomposites can significantly improve the geotechnical properties of soils. They enhance soil stability, increase load-bearing capacity, and improve soil drainage characteristics.

Application of Drainage Geocomposite

01/

Retaining structures
Drainage geocomposites dissipate pore water pressures and help maintain the stability and integrity of the structural fill in both concrete and soilreinforced retaining structures.

02/

Road, railway, and airport applications
Wick/ trench drains, which can substitute subsoil drains, are commonly used in road, railway and airport projects. Drainage geocomposites are utilised in these applications to provide efficient water drainage, ensuring optimal performance and durability.

03/

Horizontal drainage and anti-capillary layers in embankments composed of fine and cohesive fills
Drainage geocomposites facilitate the removal of excess water from the embankment, preventing water accumulation and potential instability. Additionally, they can act as anti-capillary layers, preventing the upward movement of water through the embankment.

04/

Landfills
Drainage geocomposites are utilised for leachate collection and gas ventilation, aiding in the proper management of landfill fluids and gases or leakage detection. Additionally, these geocomposites serve as a protective layer, safeguarding geomembranes against puncture or damage.

05/

Roofing and deck pavement applications
Drainage geocomposites facilitate the efficient removal of water from surfaces, reducing the risk of water accumulation and moisturerelated damage.

06/

Drainage of sports fields
Drainage geocomposites effectively manage water. They help maintain optimal field conditions, prevent waterlogging and ensure consistent playability.

How is Drainage Geocomposite Water Flow Measured?

Water flow in a drainage geocomposite is known as in-plane flow and is measured in a laboratory. These tests place the geocomposite under a constant pressure and measure the water flow at a constant hydraulic gradient. Multiple tests at varying pressures and hydraulic gradients can be used to build up a flow chart to understand flow behaviour in different conditions. The test result is usually reported in litres per second per metre width (l/m·s). One of the key parameters of this test is how the pressure is applied to the geocomposite. This is because when a geocomposite is installed adjacent to a deformable medium, such as soil, the geotextile may be pushed into the HDPE core which may throttle flow. The test methods allow the use of either hard or soft platens. The soft platens simulate installation in soil or similar conditions and it is important to ensure that test results that are used for design are those that best reflect the conditions on site in which the geocomposite is to be used.

Components of Drainage Geocomposite

Geotextiles
These are permeable fabrics made from synthetic materials such as polypropylene or polyester. Geotextiles can be woven or non-woven and are used for functions like separation, filtration, and erosion control.

Geomembranes
These are impermeable sheets made of synthetic materials like high-density polyethylene (HDPE) or polyvinyl chloride (PVC). Geomembranes act as barriers to prevent the movement of fluids or gases and are commonly used for containment applications like lining landfills or ponds.

Geogrids
These are grid-like structures made from polymer materials, typically high-strength polymers like polyester or polyethylene. Geogrids provide reinforcement to soils and are used to enhance the stability and load-bearing capacity of foundations, slopes, and retaining walls.

Geonets
These are three-dimensional structures consisting of intersecting rib-like strands or tubes. Geonets provide a drainage pathway by allowing the flow of liquids or gases through their open structure. They are commonly used in applications requiring drainage, such as landfill leachate collection systems or gas venting systems.

What Are Drainage Geocomposites Made Of?

Drainage geocomposites can be made from different types of polymers, however the most popular include high density polyethylene (HDPE), polypropylene (PP) and polyester (PET). The polymers selected are highly resistant to biological and chemical degradation. Manufacturers incorporate additives or modifiers to the polymer blend to impart desirable characteristics such as weathering resistance and uv resistance. Other polymers, such as aramids or polyvinyl alcohol (PVA) are used for highly specialised applications requiring very high strength.

Important Performance Properties That Should Be Assessed at the Time of the Design and Selection of Drainage Geocomposites

Flexible or collapsible
Drainage geonets may show high resistance to compression in the short term and might be prone to a sudden collapse in case the loads are maintained for a long period. It is therefore essential to evaluate, at the design level, in case the geonets core behaves as flexible or collapsible for the specific field conditions, i.e., utilized load, slope gradient, and design life. The drainage volume of geocomposites is directly equivalent to the thickness of the geonets core. The reference value of the flow rate should therefore be determined just when the utilized loads and the geocomposites have reached an equilibrium and without more reduction of thickness and drainage volume. While flexible drainage materials achieve equilibrium in just a few hours, it is tougher for collapsible drainage materials to achieve equilibrium in compression. How the reference value of the flow rate is determined will be based upon whether the geocomposites is expected to behave as flexible or collapsible.

Flow-rate factors
The overloading pressure to which drainage geocomposites may be subjected differs greatly from one application to another. This can be from 10 kPa under the coating of topsoil in a roof garden, up to 500 kPa as a leachate collection coating at the bottom of a landfill cell, or the base of a very huge embankment and mining stack leach pad (> 25m). Higher loads are possible but not frequent. A general procedure for controlling the allowable flow rate of drainage geocomposites in most applications is applying a set of reduction aspects that take into account all the ambiguity and phenomena related to material properties, weather, and other aspects that might decrease the in-plane flow volume of the geocomposites over the entire design life, but not citing to the short-term flow rate measured in the index tests.

Why Is Transmissivity a Crucial Factor in Drainage Geocomposite Design?

Efficiency of Water Flow
The primary function of a geocomposite drainage system is to facilitate the flow of water or other fluids. High transmissivity ensures efficient water flow through the system, preventing water accumulation and potential damage in the surrounding areas.

Hydraulic Performance
The transmissivity of a geocomposite determines its hydraulic performance. In applications like landfill leachate collection, road subgrade drainage, or retaining wall drainage, the ability to quickly and effectively transport water away from these structures is essential to maintain their integrity and prevent failure.

Prevention of Waterlogging and Erosion
In areas prone to high rainfall or water flow, a geocomposite with high transmissivity can prevent waterlogging and soil erosion. This is particularly important in slope stabilization and landscaping applications.

Load Bearing Capacity
In many geotechnical applications, water accumulation can lead to increased hydrostatic pressure, which can affect the stability of the structure. A geocomposite with adequate transmissivity helps in maintaining the load-bearing capacity of the soil or structure by reducing this hydrostatic pressure.

Longevity and Durability
Proper drainage is key to the longevity of geotechnical structures. Water accumulation can lead to deterioration of materials and structural components. By ensuring effective drainage, a geocomposite with high transmissivity can extend the life of these structures.

Adaptability to Various Conditions
Different geotechnical applications may present unique challenges, such as varying soil types, fluctuating water tables, or chemical exposure. A geocomposite with appropriate transmissivity can be selected to meet these specific conditions, ensuring the effectiveness of the drainage system.

Cost-Effectiveness
Efficient drainage systems reduce the need for maintenance and repairs. By choosing a geocomposite with the right transmissivity, long-term costs associated with water damage and system failure can be significantly reduced.

How Does a Drainage Geocomposite Extend the Life of a Retaining Wall?

Drainage geocomposite extends the life of a retaining wall by efficiently managing water flow and reducing hydrostatic pressure against the structure. It acts as a barrier, preventing soil erosion, waterlogging, and freeze-thaw cycles that can weaken the wall over time. By maintaining a dry and stable environment behind the wall, geocomposite drains mitigate the risks of cracking, bulging, or collapsing. Additionally, they are resistant to clogging and biological degradation, ensuring long-term performance and less need for maintenance or repairs.
Geocomposite drainage retaining walls represent a significant advancement in engineering and construction, offering a robust solution for managing hydrostatic pressure and ensuring the longevity of structures. By understanding the role and benefits of geocomposite drains, selecting the appropriate drainage system, and recognizing the importance of drainage in retaining wall construction, engineers and builders can enhance the stability, efficiency, and durability of their projects. Whether in residential landscaping or large-scale civil engineering, incorporating geocomposite drainage systems is a wise investment in the future of infrastructure.

Our Certifications

ISO 9001 ,CE certificate and GB/T24001/ISO14001,GB/T24001/ISO14001

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Our Factory

Feicheng Lianyi Engineering Plastics Co., Ltd has an excellent team with strong professional and technical capabilities, strong scientific management capabilities, and strong market development capabilities, talents who are good at operation and management, and a young, professional, energetic, pioneering and enterprising team. Enterprises bring infinite vitality. We attaches great importance to product promotion and brand building, and has established a wide range of win-win cooperation relationships.

Ultimate FAQ Guide to Drainage Geocomposite

Q: What is the main function of geocomposites?

A: Geocomposites are used for basic functions of roadways such as separation, drainage, filtration, and reinforcement. Geocomposites can be used to increase the strength and stability of underlying soil in a roadway.

Q: What is the difference between geocomposite and geotextile materials?

A: A geocomposite consists of a combination of one or more geosynthetics, specifically a geogrid, a geotextile, a geomembrane, and/or a geonet, with another material. Geotextiles are used primarily for applications requiring separation, filtration, reinforcement, and drainage.

Q: What is an example of a geocomposite?

A: A geocomposite is made up of one or more geosynthetics, such as a geogrid, geotextile, geomembrane, or geonet, combined with another material. Geotextiles are generally utilized for separation, filtration, reinforcing, and drainage purposes.

Q: What is the most common type of geosynthetic that can serve as drainage material filter material and for protection?

A: Nonwoven geotextiles can be used in leachate drainage systems. The management of leachates from landfill is one of the most important systems ensuring the protection of the soil–water environment.

Q: What is the purpose of geocomposite?

A: Geocomposites, consisting of a geonet bonded with geotextile layer(s) on one or both sides are used for drainage from a basal layer in case of embankments and for drainage behind retaining walls and/or bridge abutments.

Q: What is the difference between geotextile and geocomposite?

Q: What is the major function of geogrid?

A: Geogrids provide reinforcement, stabilization, and even filtration when used with properly sized aggregate fills. Made from polymers such as polypropylene, polyethylene, or polyester, they are used widely in civil engineering applications.

Q: Is geotextile necessary?

A: Without geotextile, the soil will work its way into the base and weaken it. This is a slow process that happens when the soil is saturated with water or during periods of thawing. Geotextile stops this process and extends the life of the base by many years. Geotextile is recommended for use over silt and clay soils.

Q: What is geomembrane sheet?

A: Geomembrane are plastic sheets used within soils as a waterproof barrier. Geomembranes do not always maintain close contact with the underlying material throughout their life. Problems may occur on the side slopes adjacent to open areas of water as a result of wind and wave action on any exposed portion of geomembrane.

Q: Does water penetrate geotextile fabric?

A: Needle-punched and poly-spun varieties of non-woven geotextile fabric allow water to easily flow through and are both sturdy and versatile for landscaping drainage. The non-woven geotextile fabric is most commonly used as a landscape material to support adequate drainage, filtration, and ground stabilization.

Q: How long does geofabric last?

A: Life expectancy. In experiments, the service life of fiber geotextiles is longer than that of polypropylene geotextiles; fiber geotextiles can last more than 50 years. However, the life of the geotextile fabric can be extended up to 20 years with various treatments and combinations.

Q: Which is better woven or nonwoven geotextile?

A: Generally, wovens have higher strength values, while nonwovens have higher flow rates and permittivity. The easiest way to distinguish the difference between the two materials is by starting with elongation. Nonwovens will have much higher elongation than a woven.

Q: Why use non-woven geotextile?

A: Woven geotextiles are an excellent choice for reinforcement and stabilization applications, while nonwoven geotextiles are great for filtration, separation, and drainage applications.

Q: What are the different types of geocomposites?

A: The three main geocomposite material types are: drainage geocomposites, reinforcement geocomposites and fluid barrier geocomposites.

Q: How thick is geocomposite?

A: Between 4 and 10 mm depending on the grade of drainage net core, grade of geotextile or geomembrane. The thickness of the Geocomposite will decrease with increased weight of soil fill.

Q: What size is a geofabric roll?

A: Primarily used by civil contractors, plumbers and landscapers, it is a durable and cheap engineering solution for the management and prevention of soil erosion and moisture loss. Available sizes: 2m x 50m. 1m x 50m.

Q: How do you calculate geotextile fabric?

A: For rectangular or square areas, measure the length and width of each section. Multiply these two dimensions to get the area in square metres. If you're dealing with triangles or other geometric shapes, apply the relevant formulas (for example, halve the base height for triangles by multiplying it by 0.5).

Q: What are the three types of geotextile fabric?

A: A Geotextile is permeable fabrics that can filter, separate, reinforce, drain, or protect the soil. These kinds of fabrics are usually made from polyester or polypropylene and typically made in three forms; woven, needle punched, and heat bonded.

Q: What is the thickness of nonwoven geotextile?

A: Thicknesses of geotextiles range from 0.25 to 7.5 mm. The thickness of common geomembranes used today is 0.5 mm. The physical property of stiffness refers to the flexibility of the material and is not a description of the mechanical property of stiffness which describes the material's load-strain modulus.

Q: Can water pass through non woven geotextile?

A: Non woven geotextile fabric is useful in stabilization, filtration, or separation applications. Non woven filter fabric is designed with materials that have a higher flow though rate, making it much easier for water to pass through the material.

We're known as one of the most professional drainage geocomposite manufacturers and suppliers in China, featured by quality products and good service. Please feel free to buy drainage geocomposite at competitive price from our factory.

Three Dimensional Composite Drainage Network, Tri Planar Geonet Composite With Geotextile, Two Dimensional Composite Drainage Geonet

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