Saber EX Lock Bolt
The expansion-type rock bolt made of reinforcing steel pipes, developed by K.F.C. Co., Ltd., contributes to the longevity of tunnels.
This is a new concept tunnel rock bolt that expands due to high water pressure and has a mechanism for securing itself to the surrounding rock. 【Features】 ★ Reliable construction without filling materials ★ It secures itself to the surrounding rock with the expansion pressure of the steel pipe, without using filling materials like mortar. Even in areas with water inflow, it secures itself reliably without the influence of cement component leakage. ★ Speedy construction ★ Since no fixing materials like mortar are needed and it secures itself simultaneously with construction, it contributes to shortening the construction cycle and achieving early strength development. ★ High corrosion-resistant rock bolt ★ The entire length of the bolt is treated with high corrosion-resistant plating, boasting high durability. This contributes to the long lifespan of tunnel structures. *For more details, please download the PDF or contact us.
basic information
When high-pressure water is injected using a dedicated high-pressure water injection system, the expansion section of the rock bolt inserted into the ground expands along its entire length, securing it to the ground. By providing a male thread at the mouth, it becomes possible to tighten the lining concrete with a nut, which is expected to enhance the effectiveness of ground support. 【Accessories】 Injection adapter High-pressure water injection system for expansion Anti-loosening nut "K nut" Protective pipe for lining concrete Multifunctional G type (tip cap detachable type)
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Applications/Examples of results
It is suitable for cases where construction is required within a limited time due to traffic regulations, such as repairs to in-use road tunnels and railway tunnels. Since the excavation of the ground and lining can be completed in one go, and tensile tests can be conducted without waiting for the curing of the setting material, the construction period can be shortened (compared to our other methods). It has been adopted for large-scale renovation work on the Tōkaidō Shinkansen and for renovation work on highway tunnels.
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We will be exhibiting at the "Highway Tech Fair 2022" from November 24 (Thursday) to November 25 (Friday)! [Ended]
Our company will exhibit at the "Highway Tech Fair 2022" held at Tokyo Big Sight from November 24 (Thursday) to 25 (Friday), 2022. The event aims to promote the dissemination and utilization of construction and management technologies for highways, as well as to gain a broader understanding of highway projects from customers and society, providing various opportunities. We plan to showcase the "Gaina SH Sheet Board Method" for reinforcement and fall prevention measures for concrete structures, as well as the "HAWK Anchor Checker," "FSS Fail-Safe System," and "Saber EX Lock Bolt," among others. We sincerely look forward to your visit.
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We will be exhibiting at the "Construction Technology Exhibition 2022 Kinki" from November 9 (Wednesday) to November 10 (Thursday), 2022! [Ended]
Our company will exhibit at the "Construction Technology Exhibition 2022 Kinki," which will be held at Intex Osaka, Zone C, from Wednesday, November 9, 2022, to Thursday, November 108. The exhibition serves as a platform to showcase and introduce new technologies and methods developed by private companies, facilitating interaction among industry, academia, and government. Our aim is to further enhance the construction technologies that have been cultivated thus far and promote broader technological development, encouraging the active utilization of new technologies in various projects. We sincerely look forward to your visit.
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We will exhibit at the "Construction Technology Fair 2022 in Chubu" from October 4 (Tuesday) to October 5 (Wednesday)! [Ended]
Our company will exhibit at the "Construction Technology Fair 2022 in Chubu" held at Port Messe Nagoya from October 4 (Tuesday) to October 5 (Wednesday), 2022. - We provide a platform for technical exchange among industry, academia, and government, contributing to the promotion of technology development and the introduction of new technologies. - We aim to promote the construction-related industry, advance technology development, and expand commercial transactions. - We will introduce the current status and direction of technology development to students majoring in the construction field. - We will widely present the appeal of construction technology and the necessity of social infrastructure development to the general public. We sincerely look forward to your visit.
