As global infrastructure projects increasingly tackle challenging geological conditions, the tunneling and ground engineering industries seek safer and more efficient solutions. Unconsolidated or cohesive soils often slow down traditional drilling methods, posing risks and delays. SupAnchor addresses these issues with its R Thread Self-Drilling Hollow Anchor, a key part of its advanced self drilling anchor system. Designed to integrate drilling and grouting into one operation, this innovation eliminates the need for time-consuming casing systems. With over 39,000,000 meters of self-drilling anchor bars deployed worldwide, SupAnchor's technology is proven to boost productivity and safety, making it a vital tool for modern construction.
The R thread self-drilling anchor system employs a unique 3-in-1 principle: a ribbed hollow steel bar acts as a sacrificial drilling rod, an injection tube for grouting, and a reinforcing bar. This holistic approach reduces equipment needs and labor intensity, streamlining construction. Standardized R threads, compliant with ISO 10208 and ISO 1720, allow for quick on-site connections, cutting installation time. Key technical parameters highlight the system's adaptability and strength, addressing engineering challenges in varied soils.
| Model | Outside Diameter (mm) | Ultimate Load (kN) | Yield Load (kN) | Weight (kg/m) | Corrosion Option |
|---|---|---|---|---|---|
| R25N/12 | 25 | ≥200 | ≥150 | 2.30 | Hot-dip galvanizing |
| R32L/22 | 32 | ≥250 | ≥200 | 2.75 | SupCoating |
| R32S/15 | 32 | ≥360 | ≥280 | 4.00 | Stainless steel |
These specifications ensure high tensile strength and durability. For example, the R32S/15 model offers an ultimate load of 360 kN, ideal for demanding applications like tunnel stabilization. Anti-corrosion options extend service life: hot-dip galvanizing for general use, SupCoating (HDG + epoxy) for moderate corrosion, and stainless steel for highly corrosive environments such as coastal areas. This flexibility makes the hollow bar anchor system a reliable geotechnical reinforcement system for diverse projects.
The self drilling anchor bolt is versatile, finding use in key geotechnical applications. In tunneling engineering, it supports tunnel faces, forepoling, and surrounding rock, ensuring safe excavation. For ground engineering, it stabilizes slopes, reinforces foundations, and supports retaining walls, preventing soil collapse. Other projects, like emergency repairs or temporary structures in soft ground, benefit from the rapid deployment of this drill-and-grout bolt. By integrating multiple functions, SupAnchor's solution reduces timelines and costs while maintaining high safety standards, showcasing its role in efficient geotechnical reinforcement.
SupAnchor's innovation aligns with global infrastructure trends, emphasizing safety and sustainability. The company's commitment to R&D and ISO certifications underscores its professional approach. With successful projects worldwide, from mining to urban transit, SupAnchor influences the self drilling anchor system market through collaboration and innovation. The brand's message of professionalism, innovation, and collaboration fosters trust among engineers and contractors, driving progress in geotechnical engineering.
In summary, the R Thread Self-Drilling Hollow Anchor by SupAnchor sets a new benchmark for efficiency and reliability. By addressing soil stabilization challenges, it contributes to safer and more sustainable construction globally, reinforcing its position as a leader in the industry.
SupAnchor's self drilling anchor system proved critical in a mountainous highway tunnel project, coping with fractured rock and high groundwater through superior tensile strength and rapid installation, highlighting modern geotechnical excellence.
SupAnchor unveils a fiberglass-reinforced polymer tie rod that remains embedded in concrete, eliminating removal labor and boosting resistance to corrosion, with standard thread compatibility for global formwork applications.
A large-scale tunneling project in challenging ground conditions utilized SupAnchor’s self drilling anchor system, demonstrating how hollow bar anchors and drill-and-grout bolts deliver reliable geotechnical reinforcement.
SupAnchor's self-drilling anchor system combines drilling, grouting, and anchoring, with high torsional strength and cuttability, ideal for face stabilization, slope support, and soft rock tunneling.
SupAnchor's self drilling anchor system overcomes fractured rock and groundwater in a large-scale highway slope stabilization project, showcasing advanced geotechnical reinforcement.
