Design and selection according to ground conditions is possible! Introducing rock bolts used in the NATM method.
This product is a rock bolt used in the NATM method, which is widely adopted for tunnel construction. We offer a variety of options, including the "UN Bolt [180kN capacity twist]," "deformed bar rock bolts," and "high-capacity rock bolts [297kN capacity]," allowing for the selection of rock bolts according to design and geological conditions. Additionally, we provide "UN Mortar," which excels in adhesion and early strength, for rock bolt anchoring. 【Product Lineup】 ■ UN Bolt [180kN capacity twist] ■ Deformed bar rock bolt ■ High-capacity rock bolt [297kN capacity] ■ UND self-drilling rock bolt ■ Rock bolt head protection material (rock bolt cap) *For more details, please refer to the PDF document or feel free to contact us.
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basic information
【UND Self-Drilling Lock Bolt Features】 ■ Suitable for ground that does not support itself (gravel mixed soil, strongly weathered rock, etc.) ■ The drilling rod can be used directly as a lock bolt, eliminating the need for rod retrieval and improving work efficiency. ■ The hollow design of the drilling rod allows for grout injection, ensuring that the entire length of the bolt can be grouted reliably. ■ Easy injection of various anchoring materials such as cement-based and polyurethane-based materials. *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Fujimori Industries will take a step towards transformation to make an even greater leap forward. We aim for our efforts to eventually become a significant wave, setting a new standard = benchmark that everyone aspires to. Please pay attention to our evolution and development.