JFE商事テールワン List of Products and Services

The "NTR Form" requires only the quantity of materials divided by the foaming ratio, and it is a polyurethane-based injection material for backfilling and cavity filling that is easy to apply and lightweight. Due to its short curing time, it allows for limited injection, and even in the presence of groundwater, there is little risk of material separation and outflow, thus not adversely affecting the water environment. The foamed solid forms an insoluble polymer compound in water with a three-dimensional structure, maintaining its shape and strength over the long term. 【Features】 ■ Requires only the quantity of materials divided by the foaming ratio, making it easy to apply and lightweight ■ Allows for limited injection without adversely affecting the water environment ■ Chemically stable, maintaining shape and strength over the long term ■ Complies with safety management guidelines and contains no regulated substances ■ Lightweight, compact injection machine with good workability ■ Suitable for construction in long and narrow environments *For more details, please download the PDF or feel free to contact us.

• Tunnel construction
• Tunnel Materials
• Reinforcement and repair materials

The "ST Micro Cap" is a product designed with a filling inlet and outlet on a circular plate, enabling void filling. It features an angle adjustment function for ground inclination, simplifying the structure and pursuing cost-effectiveness through the integration of traditional washers and plates. It also allows for secondary injection options to the back of the anchor, where issues are likely to occur. Please feel free to contact us when you need assistance. 【Features】 ■ The traditional square washer has been replaced with a circular washer of the same area, with four stiffeners arranged. ■ The bending rigidity of the washer has improved, resulting in more uniform load distribution from the lock bolt compared to conventional designs. ■ By integrating the reaction surface of the spherical hex nut with the washer, the installation process has been made more efficient. ■ The one-piece molding is expected to enhance cost-effectiveness. ■ The outer surface of the circular plate is finished with hot-dip galvanized coating, providing excellent protection from external environments. ■ By using a spherical male washer, it is also possible to accommodate other perforated bolts. *For more details, please download the PDF or feel free to contact us.

• Slope protection material
• Reinforcement and repair materials
• Civil Engineering Method

The "SP Anchor" is a self-drilling rock bolt that can be used as a locking bolt with the drilling rod as is, particularly in unstable ground such as unsupported rock walls or steep slopes, where improved workability is desired. Rock bolts are widely used in tunnel support work in mountainous areas and slope reinforcement earthworks. Various types of grouting agents, such as cement-based and polyurethane-based, can be selected. Please feel free to contact us when needed. 【Features】 ■ No need for double pipes, making the drilling machine compact and easy to move, suitable for narrow workspaces. ■ Drilling, rod insertion, and grouting can be completed in one process, making it economical. ■ Can handle various strata with the same operation, eliminating the need for additional geological testing. ■ The series of operations is simple and does not require highly skilled workers. ■ It is a fully threaded steel rod, and by connecting with couplers, it can accommodate any length. ■ Various types of grouting agents, such as cement-based and polyurethane-based, can be selected. *For more details, please download the PDF or feel free to contact us.

• Reinforcement and repair materials
• Slope protection material
• Civil Engineering Method

The "Hybrid MP Method" is a construction technique that can be implemented even in narrow spaces within densely populated residential areas, allowing for affordable and reliable seismic reinforcement. Before pouring concrete on the entire surface and the top horizontal part of the existing stone masonry retaining wall, tension piles are driven in a diagonal vertical direction. Additionally, compression piles are driven nearly vertically into the foundation of the existing stone masonry, protecting the entire surface of the retaining wall to prevent the collapse of the stone masonry retaining wall. 【Drilling Call Diameter】 ■φ115 ■φ135 ■φ146 *For more details, please download the PDF or feel free to contact us.

• Reinforcement and repair materials
• Renovation and repair methods
• Civil Engineering Method

The "SP Leg Drill" is a product that enables the installation of permanent bolts up to 3.0m in ground that does not support self-standing holes using a leg drill. This pressurized injection can also be applied for the repair of aging slope coverings. It ensures reliable anchoring through pressurized injection. 【Features】 ■ Active two-directional pressurized injection ■ Achieves reliable full-area anchoring *For more details, please download the PDF or feel free to contact us.

• Renovation and repair methods
• Reinforcement and repair materials
• Slope protection material

"SP Micro Pile" is a construction method developed with a thorough pursuit of improved workability, long-term quality maintenance, and cost-effectiveness. In cases where the supporting ground is ultra-hard rock, post-insertion of the core material after conventional double-tube drilling is also an option. Even in narrow working spaces, construction can be carried out with conventional anchor machines. Please feel free to contact us when needed. [Features] - Self-drilling bolts for double-tube drilling - Conventional double-tube drilling (post-insertion of core material) is also possible *For more details, please download the PDF or feel free to contact us.

• Ground improvement
• Ground improvement materials
• Reinforcement and repair materials

The "ST Lock Bolt" is a product designed for rebar insertion work with a nominal diameter of up to 65mm, where the hole wall is self-supporting. Rigid foam polyurethane effectively fills not only the back void but also various gaps around it. Considering the mortar finish on the head and the water-stopping function, it has an excellent head structure in terms of functionality, workability, and cost-effectiveness. [Accessories] ■ Spherical nut ■ Tip cap ■ Coupler *For more details, please download the PDF or feel free to contact us.

• Slope protection material
• Reinforcement and repair materials
• Civil Engineering Method

The 'SP Soil Nail' handled by JFE Shoji Tail One Corporation is a self-drilling permanent rock bolt method developed by its group company, ST Engineering Co., Ltd., which is suitable for ground where the borehole walls do not stand independently. It can be constructed using general-purpose machinery such as small boring machines and backhoe drills, and depending on site conditions, construction can be carried out while minimizing scaffolding. By adopting a unique "partial double-tube method" and "two-directional pressure injection," it achieves improved workability and stable anchoring performance. Compared to conventional double-tube drilling methods, it is expected to reduce labor, shorten construction periods, and lower costs. Additionally, it accommodates a wide range of ground conditions from sandy soils to weathered rock and soft rock. It is utilized in various sites for slope reinforcement and slope disaster prevention measures. Furthermore, with the revision of NEXCO's "Cutting Soil Reinforcement Construction Method Design and Construction Guidelines" in July of the 6th year of Reiwa, the approach to applying self-drilling types to permanent installations has been reconsidered. It is anticipated that there will be further opportunities for comparison and examination of the SP Soil Nail method as an option for permanent reinforcement in ground where the borehole walls do not stand independently.

• Slope protection material
• Reinforcement and repair materials
• Civil Engineering Method

The Tail Arme All-Precast method is a reinforced earth wall construction technique that has transformed the top and foundation sections, which were traditionally constructed using cast-in-place concrete, into precast products. It was registered with NETIS (KT-210058-A) in October 2021, contributing to improved construction efficiency and quality. By combining a long-neck skin for the top section, precast foundation concrete, and precast cap concrete, it significantly reduces the need for formwork work, concrete placement, and curing time on-site. This leads to shortened construction periods, increased productivity, and enhanced safety, making it suitable for sites facing labor shortages or challenging construction conditions. Its adoption is also expanding in locations where traditional methods struggle with process management, such as cold regions and tiered sections. It represents a next-generation Tail Arme method aimed at balancing labor reduction and construction quality.

• Reinforced earth wall
• Retaining wall
• Road construction

【Tail Arme FS】Visualizing Deformation and Abnormal Loads of Reinforced Soil Walls - The failure sensor function allows for visual confirmation of deformations within the reinforced soil. - The long-hole structure enables a slide of about 20mm, allowing the wall surface to tilt functionally, making it possible to confirm abnormalities from the outside. - Achieved without electricity, through the improvement and addition of existing materials. Maintenance management can be done at a low cost. - Additional implementation is possible at a low cost even at sites where design has already been completed. - Can be utilized for determining the timing of detailed investigations of reinforced soil walls and for planning repair strategies. - Registered technology in NETIS (QS-170031-A) and awarded the Excellence Award at the 3rd Infrastructure Maintenance Awards. 【Steel Corrosion Detection Sensor】Visualizing the Progress of Corrosion in Steel Components such as Reinforcements - Used in conjunction with the KD panel of Tail Arme to monitor the progress of corrosion in reinforcements and to determine the timing for sample collection. - A corrosion detection sensor for underground steel materials utilizing plastic optical fibers. - When the reduction in thickness due to corrosion reaches a predetermined depth, corrosion is detected by light blockage. - Utilizes natural light, eliminating the need for battery replacement or wiring. - Can be judged visually, and no specialized measuring instruments are required. Remote monitoring is possible through combinations with photography or remote cameras. - Can also be used for corrosion management of other underground steel structures such as steel pipe piles and steel sheet piles.

• Reinforced earth wall
• Retaining wall
• Renovation and repair methods

"Aqua Tail 35・14" is a reinforced soil wall construction method developed for river and bank structures, based on the reliability of the tail arm method, which boasts the highest track record in Japan. For areas affected by river water levels, we use "Aqua Tail 35" with a wall thickness of 350mm, ensuring high durability against collisions and wear from floating debris. Additionally, in areas not affected by water levels, we combine it with "Aqua Tail 14," which has a wall thickness of 140mm, achieving an economical structure while maintaining a sense of unity in the landscape. Moreover, by adopting precast concrete panels, we can reduce labor and shorten construction periods compared to cast-in-place retaining walls. The high permeability of the fill material and the wall structure allow for rapid response to sudden water level fluctuations, and safety has been confirmed through various tests and analyses. This reinforced soil wall construction method is suitable for waterfront environments, achieving shortened construction periods and cost reductions while maintaining high reliability. 【Features】 ■ High stability against flowing water and applicability to salt damage areas ■ Confirmed high safety against collisions with floating debris ■ Sufficient impact resistance of wall panel materials ■ Use of highly permeable "coarse aggregate" for fill materials *For more details, please refer to the PDF materials or feel free to contact us.

• River construction
• Reinforced earth wall
• Dam construction

JFE Shoji Tail One Co., Ltd. leverages its long-standing expertise in the sales of the Tail Armé method to also propose and sell products other than the Tail Armé method.

• Civil Engineering Method
• Retaining wall
• Road construction

The "Terra Armé Method" is a reinforced soil wall construction method with a proven track record worldwide, developed in 1963 and implemented globally. Our company is developing new construction methods based on the principles and concepts of the Terra Armé Method. These new methods are registered in the Ministry of Land, Infrastructure, Transport and Tourism's information provision system for the utilization of new technologies (NETIS) and are being utilized as valuable new technologies. We promise to continue evolving in a more efficient and robust manner according to various environments, contributing to the creation of a better future for humanity. 【Features】 ■ Strong against disasters due to its resilient structure ■ Easy to construct with a simple component configuration ■ Versatility to accommodate various applications ■ Easy detection of anomalies due to its flexible structure *For more details, please refer to the PDF materials or feel free to contact us.

• Retaining wall
• Reinforced earth wall
• Road construction

"TerraVeil" uses mesh panels as wall materials in the tail-arm method, allowing for greening of the walls when combined with vegetation mats. With a simple component structure, it is possible to construct green reinforced soil at a low cost. The wall materials are made of lightweight reinforced mesh, enabling manual construction without the need for special techniques. By incorporating a sliding function of about 100mm during the assembly of the mesh panels, it can adapt to the deformation of the embankment. By restricting the connection points of the reinforcement materials and wall materials to four, it suppresses the protrusion of the wall and ensures the quality of the wall's finish. [Features] ■ Easy and economical construction ■ Flexibility that matches the characteristics of reinforced soil walls ■ Reliability that can be achieved because it is a tail-arm method ■ Creation of spaces that blend naturally into the landscape *For more details, please refer to the PDF document or feel free to contact us.

• Retaining wall
• Reinforced earth wall
• Road construction

The "Taille Armée" is a technology that stabilizes soil particles through the friction of strips (strip steel) and retains the soil with a skin (wall material), forming a vertical and stable wall surface. Unlike gravity retaining walls, it does not suppress the soil but utilizes the flexibility of the soil, making it a flexible structure that is resistant to earthquakes and suitable for the natural conditions of our disaster-prone country. This technology can be applied across various fields such as architecture, civil engineering, and landscaping, enabling flexible designs that align with the specific plans and designs of various facilities in Japan. 【Features】 - It is the only reinforced soil wall that has obtained ministerial certification as a "Taille Armée retaining wall," allowing its use in highly important areas such as residential land development. - Being a vertical retaining wall, it maximizes the effective use of residential land. - Unique "free linear expression" characteristic of Taille Armée. - By flexibly responding to the choice of materials and colors for the skin and adding expressions, it harmonizes with the surrounding landscape. *For more details, please refer to the PDF materials or feel free to contact us.

• Retaining wall
• Reinforced earth wall
• Earthquake-resistant construction method

The "Tail Alme FS" is a construction method that allows for the safe visualization of abnormalities within embankments through fail-safe and fail-sensor functions, moving beyond the previous approach of determining abnormalities based solely on surface information. The "fail-safe function" ensures that if the function of the targeted component is lost, a separate component that is not active during normal conditions will take over, preventing any impact on the reinforced soil wall. The "fail-sensor function" visualizes abnormalities within the Tail Alme embankment. 【Features】 ■ Technology aligned with the basic plan for infrastructure longevity promoted by the Ministry of Land, Infrastructure, Transport and Tourism (H25) ■ Received the Excellence Award at the 3rd Infrastructure Maintenance Awards ■ Among similar maintenance management technologies, it has a simple structure that does not require power sources ■ Construction and durability are comparable to standard Tail Alme systems *For more details, please refer to the PDF document or feel free to contact us.

• Retaining wall
• Renovation and repair methods
• Reinforced earth wall