SupAnchor Launches World-First GFRP Friction Bolt for Enhanced Geotechnical Safety

SupAnchor introduces the patented GFRP friction bolt, offering corrosion resistance, safety, and lightweight benefits for underground engineering and mining applications.
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SupAnchor Launches World-First GFRP Friction Bolt for Enhanced Geotechnical Safety
Industry News
2025-11-20
18

SupAnchor Launches World-First GFRP Friction Bolt for Enhanced Geotechnical Safety

In the demanding field of underground engineering, projects often grapple with harsh geological conditions, such as corrosive rock formations and unstable slopes, which threaten structural integrity and worker safety. As global infrastructure expands, the need for reliable support systems has never been greater. SupAnchor, a leader in geotechnical solutions, has responded with the SupFRP® GFRP Friction Bolt, a patented innovation that marks a significant leap forward in rock and soil stabilization. This product not only addresses common challenges like corrosion and spark hazards but also aligns with modern engineering demands for durability and efficiency, positioning SupAnchor at the forefront of industry advancements.

Construction site using SupAnchor self drilling anchor system

Technical Parameters

The SupFRP® GFRP Friction Bolt is engineered to outperform traditional steel bolts in critical aspects, thanks to its Glass Fiber Reinforced Polymer composition. During installation in sites like tunnels or mines, engineers face issues such as rapid corrosion in wet environments and safety risks from friction sparks. This bolt's technical specs directly mitigate these problems, with key parameters highlighting its superiority. For example, its high tensile strength ensures robust load-bearing capacity, while the lightweight design streamlines on-site processes. Below is a comparison with steel bolts, illustrating how these features translate into practical benefits for geotechnical reinforcement systems.

PropertySteel Friction BoltGFRP Friction Bolt
Corrosion resistanceLowHigh
Density (g/cm³)7.82.0
Coefficient of heat conductivity at 20℃ (W/m)640.75
ElectroconductibilityYesNo
Tensile strength (N/mm²)3901000
Working temperature range< 1000 ℃-50 ℃ to 100 ℃

For specific applications, the FB-48 model offers precise data that underscores its adaptability. With an outside diameter of 50 mm, ultimate load of 350 kN, and end load of 70 kN, it provides reliable support in high-stress scenarios. The weight of 1.7 kg/m further enhances installation efficiency, reducing labor and logistics costs. These parameters solve engineering challenges by ensuring long-term stability in corrosive environments, where steel bolts might fail prematurely, and by improving safety through non-conductive and spark-free properties. This makes the GFRP bolt an integral part of advanced geotechnical reinforcement systems, including self-drilling anchor bolts and hollow bar anchors, which SupAnchor specializes in.

Application Scenarios

The GFRP friction bolt excels in diverse settings, from urban tunneling to remote mining operations, where geological instability and environmental factors pose significant risks. In tunneling projects, such as those for subways or hydroelectric conduits, the bolt's corrosion resistance prevents degradation in acidic or saline conditions, extending the structure's lifespan. Mining applications benefit from its ease of cutting and lightweight nature, allowing seamless integration into ore processing without damaging equipment. For slope stabilization in areas prone to landslides, the absence of friction sparks during installation enhances safety, particularly in volatile atmospheres. These scenarios highlight the bolt's role in comprehensive geotechnical reinforcement systems, supporting everything from soil nail systems to drill-and-grout bolts. Key advantages include:

  • Corrosion resistance: Ideal for wet or chemical-laden environments, ensuring durability and reducing maintenance costs.
  • Safety: No spark generation during installation minimizes explosion risks in mines or industrial sites.
  • Light weight: At one-quarter the density of steel, it lowers transportation expenses and speeds up deployment.
  • Insulation properties: Suitable for electrical-sensitive areas, preventing conductivity-related hazards.
  • Ease of cutting: Facilitates efficient ore separation in mining, avoiding equipment damage and improving operational flow.

SupAnchor's self-drilling anchor system complements this product, offering a holistic approach to ground anchoring. By integrating such innovations, engineers can tackle complex projects with greater confidence, from deep foundation pits to infrastructure upgrades across Europe and the Americas.

Industry Value

The introduction of the GFRP friction bolt arrives at a critical juncture for global infrastructure, as rising urbanization and climate challenges amplify the need for resilient geotechnical solutions. In sectors like tunneling, mining, and civil engineering, this product supports safer, more sustainable practices by reducing environmental impact and enhancing worker protection. For instance, in European projects involving underground rail networks, the bolt's longevity aligns with sustainability goals, while in American mining operations, its safety features help comply with stringent regulations. SupAnchor's innovative approach, backed by robust R&D and ISO certifications, underscores its commitment to advancing the field. The company's collaborative projects with international engineering firms demonstrate how this bolt integrates into broader systems, such as ground anchor bolt factories and soil nail system manufacturers, fostering a professional ecosystem. By driving efficiencies in installation and maintenance, the GFRP friction bolt not only boosts project economics but also reinforces SupAnchor's reputation as a pioneer in geotechnical reinforcement. As industries evolve, this innovation promises to play a pivotal role in shaping future infrastructure, emphasizing the brand's core values of professionalism, innovation, and collaboration.

SupAnchor self drilling anchor bolt

In summary, the SupFRP® GFRP Friction Bolt represents a transformative step in geotechnical engineering, offering a reliable alternative that addresses modern challenges head-on. Its technical prowess and broad applicability make it a valuable asset for engineers worldwide, supporting SupAnchor's vision of safer, more efficient construction. As the company continues to expand its global footprint, this product will undoubtedly contribute to the resilience and sustainability of critical infrastructure projects.

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