Triaxial Geogrid for Reinforcement – Feicheng Lianyi

Engineered for Superior Soil Stabilization and Load Distribution

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Introduction

In modern civil engineering and construction, the stability and longevity of infrastructure projects depend heavily on the quality of ground reinforcement. Feicheng Lianyi Engineering Plastics Co., Ltd. has established itself as a leader in geosynthetic manufacturing, offering innovative solutions that address the most challenging soil conditions. Among our advanced product line, the LIANYI Triaxial Geogrid stands out as a revolutionary reinforcement material designed to deliver exceptional performance in load distribution, soil confinement, and long-term structural integrity .

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What is a Triaxial Geogrid?

A triaxial geogrid is a geosynthetic material manufactured from a punched polypropylene sheet that is oriented in multiple, equilateral directions to form a unique hexagonal structure with triangular apertures . Unlike traditional biaxial geogrids that provide reinforcement in only two perpendicular directions, our triaxial geogrid offers multidirectional reinforcement across 360 degrees, effectively confining and interlocking aggregate particles from every angle .

The manufacturing process involves extrusion, precision punching, and controlled stretching in three equilateral directions, resulting in high radial stiffness and optimal in-service stress transfer from the aggregate to the stabilizing geogrid .

Why Choose LIANYI Triaxial Geogrid?

1. Company Strength and Reliability

Feicheng Lianyi Engineering Plastics Co., Ltd. is a comprehensive enterprise dedicated to the research, development, manufacturing, and sales of geosynthetic products. Our credentials speak for themselves:

• Financial Strength: Fixed assets of RMB 800 million

• Workforce Excellence: 581 employees, with 48% holding university degrees

• Production Capacity: Annual output of approximately 150,000 tons

• Global Reach: Products successfully exported to Korea, Israel, Kuwait, Thailand, Canada, Panama, and many other countries

• Industry Recognition: One of the earliest members of the China Geosynthetic Material Engineering Institute

2. Certifications and Quality Assurance

We maintain the highest standards of quality control, holding internationally recognized certifications:

• ISO 9001:2015 certified facility

• CE certification for European markets

• SGS certification and testing compliance

• Products meet EN 15381:2018 standards where applicable

3. Advanced Manufacturing Technology

Our triaxial geogrids are produced using state-of-the-art German machinery, including Karl Mayer high-speed “Raschel” warp machines and advanced coating technology . This investment in technology ensures:

• Consistent product quality across all batches

• Precise aperture geometry for optimal aggregate interlock

• Superior material properties through controlled stretching processes

4. Superior Product Features

Material Excellence

• Manufactured from high-grade polypropylene (PP)

• Carbon black additive (minimum 2%) for UV protection

• Chemical resistance to acids, alkalis, and soil contaminants

• Resistance to biological degradation and environmental stress cracking

Structural Advantages

• Hexagonal structure with triangular apertures for 360-degree reinforcement

• High radial stiffness throughout all directions

• Excellent creep resistance for long-term performance

• High long-term design strength

Performance Benefits

• Creates a stiffer aggregate layer for improved load distribution

• Reduces vertical stress on underlying soils

• Enhances load-bearing capacity of reinforced sections

• Minimizes deformation and settlement over time

5. Quantifiable Performance Improvements

Independent evaluations demonstrate the effectiveness of LIANYI Triaxial Geogrid in various applications :

6. Product Range

We offer a comprehensive selection of triaxial geogrid types to match specific project requirements:

• Standard Series: TX130, TX140, TX150, TX160, TX170,TX180,TX190.

• Heavy-Duty Series: TX5, TX7

• Roll Size: Standard 3.95m × 50m rolls for efficient installation

Applications of LIANYI Triaxial Geogrid

Road Construction and Pavement Reinforcement

Our triaxial geogrid is highly durable and efficient for road construction projects, providing superior tensile strength and load distribution in areas with high traffic loads or poor soil conditions. It stabilizes and reinforces the ground under roadways, reducing the need for deep foundations or excessive construction materials while distributing traffic loads more evenly to prevent deformation .

Retaining Walls and Steep Slopes

For mechanically stabilized earth (MSE) walls and steep slope applications, the triaxial structure offers exceptional reinforcement capabilities in all directions, ensuring maximum soil stability and resistance to lateral earth pressures -7.

Foundation Support

When used in foundation applications, LIANYI Triaxial Geogrid creates a stabilized platform that distributes structural loads more uniformly across weak or variable soils, reducing differential settlement and improving overall structural performance -7.

Railway Trackbed Stabilization

The multidirectional reinforcement capability makes our triaxial geogrid ideal for railway applications, where dynamic loading and vibration require exceptional aggregate confinement and load distribution.

Airport Infrastructure

Runways, taxiways, and aprons benefit from the superior load distribution and long-term stability provided by triaxial geogrid reinforcement, particularly under the demanding conditions of aircraft traffic.

Installation Guidelines

Site Preparation

• Clear the site of vegetation, debris, and loose materials

• Grade and compact the surface to provide a stable foundation

• Ensure proper drainage if required

Geogrid Placement

• Unroll the geogrid over the prepared surface

• Ensure it lies flat and taut, free from wrinkles or folds

• Align adjacent rolls with proper overlap (typically 300-600mm)

• Secure temporarily with pins or staples if needed

Backfilling and Compaction

• Place backfill material in thin lifts (typically 150-200mm)

• Compact each lift thoroughly to ensure effective interlock

• Avoid sharp turns or sudden movements by construction equipment directly on the geogrid

• Repeat the process for multiple layers as designed

Environmental and Economic Benefits

Sustainability

By enabling thinner aggregate layers and reducing excavation requirements, our triaxial geogrid contributes to significantly lower CO₂ emissions and a reduced carbon footprint for construction projects. The durable polypropylene material ensures long service lives that often exceed the superstructures they support.

Cost-Effectiveness

LIANYI Triaxial Geogrid delivers substantial lifecycle savings through:

• Reduced aggregate thickness requirements

• Extended infrastructure service life

• Decreased maintenance frequency

• Lower overall project costs

Technical Support and Customer Service

At Feicheng Lianyi, we believe that great products deserve great support. Our team of experienced engineers and technical specialists is available to:

• Assist with product selection for specific project requirements

• Provide design guidance and recommendations

• Offer installation support and training

• Respond to technical inquiries promptly

Conclusion

LIANYI Triaxial Geogrid represents the evolution of ground reinforcement technology. By combining innovative triaxial geometry with premium polypropylene materials and precision manufacturing, we have created a product that delivers superior load distribution, exceptional aggregate interlock, proven durability, and cost-effective solutions for modern infrastructure projects.

Whether you are designing a major highway, stabilizing railway trackbed, constructing retaining walls, or building over soft soils, LIANYI Triaxial Geogrid provides the performance, reliability, and value that demanding construction projects require.