Geogrid
Geogrid Manufacturers:Shandong Lianjie – The leading geogrid manufacturer in China.It is located in the High tech Development Zone of Tai’an City. Our geogrid products include bidirectional geogrids, uniaxial geogrids, steel plastic composite geogrids, fiberglass geogrids, and polyester warp knitted polyester geogrids. Our products are applied in various fields such as highway subgrade, railway, tunnel, airport, port, and dock engineering. Come and get your exclusive geogrid solution!
What is Geogrid
Geogrid is an important branch of geosynthetic materials. It refers to a sheet-like engineering material with a regular grid structure, which is made from base materials such as high-molecular polymers, glass fibers, and metal materials through processes including extrusion, stretching, weaving, and compounding. Its core function is to realize the reinforcement, consolidation, stabilization, and structural enhancement of soil through the mechanical interaction (interlocking, friction, and stress transfer) between its grid and engineering fillers like soil, sand, and gravel. This helps solve key problems in civil engineering such as insufficient soil bearing capacity, settlement deformation, and slope instability, and it is widely used in fields including transportation, water conservancy, municipal engineering, and environmental protection.
Price of Geogrid
The price of geogrids does vary depending on factors such as material, specification, brand, production process, and purchase quantity.
Unidirectional Plastic Geogrids: The price generally ranges from RMB 1.50 to RMB 1.80 per square meter.
Bidirectional Plastic Geogrids: The price varies by purchase quantity. For example, the price of 50KN bidirectional plastic geogrids, with a minimum order quantity of 100 square meters, is RMB 2.20 per square meter.
Steel-Plastic Composite Geogrids：The general price ranges approximately from RMB 1.95 to RMB 3.20 per square meter.
Glass Fiber Geogrids：The price of ordinary glass fiber geogrids is around RMB 20.00 per square meter, while that of high-performance glass fiber geogrids is over RMB 30.00 per square meter.
Application of Geogrid
Geogrids form a composite structure with soil through their high tensile performance, which disperses lateral earth pressure and enhances structural stability. On soft soil foundations, bidirectional geogrids can effectively coordinate deformation.
Bidirectional geogrids reinforce and separate soil layers, promote soft soil consolidation, and inhibit settlement. Polyester geogrids are often used for soft foundation reinforcement of roads.
Unidirectional geogrids anchor the soil of slope surfaces, resist lateral displacement, and are suitable for gentle slope reinforcement.
Bidirectional geogrids are used in equestrian track surfaces to enhance the bearing capacity of the base and prevent frost heave deformation.
Advantages of Geogrid
Excellent mechanical properties:
High tensile strength and low elongation, which can effectively transfer and disperse loads, enhance soil stability, and adapt to various engineering stress scenarios.
Strong environmental adaptability:
Acid-alkali resistant and anti-aging; some products contain anti-UV additives, maintaining performance during long-term service and adapting to complex geology and climates.
Convenient construction:
Lightweight, easy to cut and lay, with good interlocking with fillers, shortening the construction period, reducing comprehensive project costs, and enabling wide application.
Our Geogrid Advantages
Professional Manufacturing
We focus on the R&D and production of geogrids, with rich manufacturing experience.
Quality Assurance
Our products have passed multiple quality certifications, ensuring stable and reliable product performance.
Thoughtful Service
We provide comprehensive technical support to solve problems encountered by customers during product use.
Convenient Installation & Maintenance
The products feature easy installation and convenient maintenance, which can effectively reduce construction costs and time.
Customer Evaluation of Our Geogrid
For our highway project, we used their biaxial geogrids to treat soft foundations, and their technical team provided a suitable plan. Half a year after opening to traffic, the settlement is only 4mm, and the anti-ultraviolet coating is durable. We will choose your products for subsequent road sections.
We used their uniaxial geogrids to reinforce the slope of the water conservancy dike. With a strength of 80kN/m, it is sufficient, and there was no displacement during the flood season. The mechanical properties did not decrease after testing following water immersion, and it has good impermeability and anti-aging performance. They are a reliable partner.
We used their glass fiber geogrids to protect the anti-seepage membrane in the municipal landfill. The grids have uniform meshes and are easy to lay, with no leakage for half a year. They also delivered goods on time even during the epidemic, ensuring the project schedule. We will recommend them to our peers.
Frequently Asked Questions
What is the best geogrid for a gravel driveway?
When choosing geogrids for gravel driveways, the key factors are restricting gravel displacement, enhancing foundation stability and weather resistance. Three suitable product types are recommended:
Biaxially stretched plastic geogrids (PP material): Cost-effective, their grid structure can interlock with gravel to disperse loads and reduce settlement. They are UV-resistant and acid-alkali resistant, suitable for ordinary household or light-load gravel driveways.
Polyester warp-knitted geogrids: With high tensile strength and low elongation, they have strong bite force with soil/gravel, effectively preventing driveway cracking. Wear-resistant and long-lasting, they are suitable for medium-heavy load gravel driveways (e.g., for small trucks).
Glass fiber geogrids: Featuring high modulus and low creep, they have good high-temperature stability. If an asphalt layer may be added to the gravel driveway later, choosing them can delay cracking, making them suitable for scenarios requiring high durability.
How to install geogrid?
Professional Installation Process of Geogrids (Simplified Version)
1. Pre-installation Preparation: Clear debris from the construction site and compact the foundation (compaction degree ≥ 93%, flatness error within ±5cm). Verify that the geogrid model matches the design requirements, check for no damage, then cut it according to the site size with a 10-15cm overlap reserved. Prepare light-duty rollers (1-2t), anchor pins (HDPE/galvanized steel, 15-30cm long), and hot-air welding machines (for plastic geogrids).
2. Laying and Fixing: Lay the geogrids along the main load direction (e.g., the driving direction of the driveway) while keeping them flat and wrinkle-free. For longitudinal splicing, use overlapping (10-15cm) or welding (weld seam ≥ 5cm for plastic geogrids); the transverse overlap should be ≥ 10cm. Fix the geogrids with anchor pins in a “plum-blossom” pattern—pin spacing is 50-80cm at the edges, 100-150cm in the middle, and reduced to 30-50cm in sandy soil/slope areas.
3. Backfilling and Rolling: Conduct backfilling within 12 hours. Use gravel/soil with particle size ≤ 5cm for the first layer, with a thickness of 15-20cm, and perform static rolling with a light-duty roller (speed ≤ 2km/h). For subsequent backfilling in layers (20-30cm per layer), ensure the soil covering the geogrids is ≥ 30cm thick when using heavy-duty rolling.
4. Key Precautions: When laying on slopes, extend the geogrids 50-100cm to the top of the slope for anchoring; add transverse support bars if the slope gradient > 1:1.5. Lay geotextiles first for soft soil foundations. Avoid construction at noon in high temperatures; unfold glass fiber geogrids gently in low temperatures; stop work on rainy days. For acceptance, check the firmness of overlaps, and sample-test the welding strength (≥ 80% of the base material strength) and foundation bearing capacity.
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