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fence Product List

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Ring net rockfall protection fence - RXE type -

Ring net rockfall protection fence - RXE type -

Improved type with reduced deformation! You can choose from four types depending on the target energy.

The "Ring Net Rockfall Protection Fence - RXE Type" is a slope-mounted rockfall protection fence capable of handling rockfall energy up to 3,000 KI. While leveraging the advantages of the conventional Ring Net Rockfall Protection Fence (RX Type), this improved version minimizes deformation and allows selection from four types based on the target energy. By incorporating new components that were not present in the RX Type, its applicability to snow accumulation has increased, and the reduced number of cushioning devices has made parts replacement even easier. 【Applications】 ● Protection for roads, railways, private homes, public facilities, etc. 【Features】 ● Capable of handling rockfall energy up to 3,000 KI ● Slope-mounted ● Selectable from four types based on the target energy (RXE-500, 1000, 2000, 3000) ● Fewer cushioning devices make parts replacement even easier

  • Protective fence
  • Road construction
  • Railway Construction

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Rockfall protection "LDB-500" that can be installed in areas with little distance from the preservation target.

Rockfall protection "LDB-500" that can be installed in areas with little distance from the preservation target.

A rockfall protection fence with reinforced posts that has a small deformation amount during rockfall impact. The shock absorption device is easy to replace and has excellent maintenance characteristics.

This is a rockfall protection system with reinforced posts that can absorb rockfall energy up to 500 kJ and has a small fence deformation during rockfall impacts. The fence deformation is less than 2.0 m (1.34 m in full-scale tests), making it most effective in narrow locations such as alongside roads and railway tracks. 【Applications】 ● Rockfall measures in narrow installation areas ● Rockfall measures alongside roads and railway tracks 【Features】 ● The fence deformation is less than 2.0 m, so it does not encroach on construction limits. ● By rigidly connecting the upper chord and posts, low deformation is achieved. ● The performance of the protective fence has been verified through full-scale testing. ● Rockfall energy is absorbed by the balanced arrangement of impact-absorbing components (U-brakes) utilizing the bending deformation of steel, and high toughness and high strength posts made by combining H-beams and steel pipes. ● Each span has an independent structure, allowing for maintenance and repairs within a limited area. ● It can be installed directly on retaining walls or on the ground.

  • Protective fence
  • Other civil engineering works

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Rockfall protection fence "TF Barrier" that is easy to install on existing structures.

Rockfall protection fence "TF Barrier" that is easy to install on existing structures.

The 'TF Barrier' rockfall protection fence, characterized by its "L-shaped" posts, is easy to install on new and existing structures, minimizing the impact on structures during rockfall events.

The TF barrier can be installed on both new and existing structures and can withstand rockfall energy of up to 200 kJ. Since it is designed not to impose a load on the structure, it is possible to address the aging of existing structures, insufficient rockfall capture performance, and inadequate fence height without the need for removal or reinforcement of existing structures. 【Applications】 ● Protection for roads, railways, etc. ● Resolution of insufficient fence height on existing structures ● Resolution of insufficient rockfall capture performance on existing structures 【Features】 ● The support posts are in a 'knee' shape, making installation on structures easy. ● It can accommodate various types of existing structures, such as gravity retaining walls and block retaining walls. ● With two types of special shock-absorbing devices, it is designed to avoid imposing loads on the structure. ● By using two types of nets with different mesh sizes, it enhances the penetration resistance against rockfall. ● Performance has been verified through full-scale experiments.

  • Protective fence
  • Other civil engineering works

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Rockfall mitigation using flexible structures: "Ring Net Rockfall Protection Fence (RX Type)"

Rockfall mitigation using flexible structures: "Ring Net Rockfall Protection Fence (RX Type)"

During rockfall, a flexible structure rockfall protection fence method that allows for the absorption and dispersion of high energy, with maintenance and management being simple through just component replacement / applicable to railway and sediment control fields.

This is a rockfall protection fence construction method that enables the absorption of high energy up to 3,000 kJ, using a special wire mesh woven in a ring shape (ring net), shock-absorbing components (brake rings) incorporated into the support ropes that suspend the ring net, and wire rope anchors connecting from the top of the support to the ground. 【Applications】 ● Protection for roads, railways, residential areas, public facilities, etc. 【Features】 ● You can choose from six types (RX-025, 075, 100, 150, 200, 300) according to the target energy. ● It is a highly reliable construction method that has obtained construction technology review certification. ● It uses lightweight fence components and has fewer constraints related to the terrain and geological conditions at the installation site, allowing for installation on steep slopes without changing the slope shape. ● It minimizes the amount of tree cutting, and since there is no excavation or concrete pouring on the slope, it reduces the impact on the natural environment and harmonizes with the environment. ● The components that undergo plastic deformation have established replacement criteria, allowing for appropriate maintenance and management after rockfall capture.

  • Protective fence
  • Other civil engineering works

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TXI Rockfall Protection Fence with improved workability and maintenance management using high-strength diamond mesh.

TXI Rockfall Protection Fence with improved workability and maintenance management using high-strength diamond mesh.

A protective fence that simplifies the structure and enhances construction and maintenance, capturing falling rocks without obstructing traffic on the road, which is the object of preservation.

The TXI rockfall protection fence efficiently absorbs rockfall energy of up to 100 kJ using high-strength nets and impact-absorbing components (brake rings) attached to wire ropes. It is the smallest type in the ring net rockfall protection fence series. 【Applications】 ● Protection for roads, railways, private homes, public facilities, etc. 【Features】 ● The performance of the protection fence has been verified through full-scale experiments. ● It can be installed without regard to location, whether on a retaining wall or mid-slope. ● Maintenance has been improved by adopting easily detachable replacement ropes.

  • Protective fence
  • Other civil engineering works

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Environmentally friendly slope failure countermeasure technology "Impact Barrier"

Environmentally friendly slope failure countermeasure technology "Impact Barrier"

Flexible slope failure countermeasures that can absorb large impacts from collapsing soil and debris can reduce CO2 emissions compared to concrete retaining wall structures.

This is a protective fence developed based on the technology of ring net rockfall protection fences, designed to capture collapsing soil and rocks as a countermeasure against landslides. It is a countermeasure that reduces impact force or captures soil and rocks using an impact barrier in locations where reinforcing or installing retaining walls is difficult. 【Applications】 ● Protection of roads, railways, private homes, and public facilities ● Capture of soil and rocks flowing out due to rainfall and other factors 【Features】 ● The foundational technology of ring net rockfall protection fences has been applied and improved to create a structure suitable for capturing soil and rocks. ● It complies with the Sediment Disaster Prevention Act and can withstand impact forces from collapsing soil of up to 150 kN/m². It is also stable against accumulated soil pressure. ● Lightweight materials are used, allowing installation in steep slopes and narrow areas where it is difficult to install retaining walls. ● Full-scale experiments have been conducted to confirm the performance of capturing collapsing soil and rocks.

  • Protective fence
  • Erosion control works
  • Other civil engineering works

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Avalanche prevention fence 'Snow Net' that excels in permeability without the need for concrete.

Avalanche prevention fence 'Snow Net' that excels in permeability without the need for concrete.

A net-structured avalanche prevention fence that can be installed in a short period, has excellent permeability, and can adapt to undulating terrain with minimal impact on the surrounding landscape and environment.

This is an avalanche prevention fence designed to eliminate or minimize the risk of avalanches. Its net structure allows for flexible response to snow pressure and achieves lightweight components. Additionally, it is constructed in a way that does not stand out from a distance and takes the landscape into consideration. 【Applications】 ● Protection of roads and residences from avalanches ● Avalanche measures in areas where landscape preservation is necessary ● Avalanche measures in areas where rockfall protection is also needed (up to 500 kJ) 【Features】 ● Can accommodate snow depths of approximately 5.0 meters (varies depending on slope and snow conditions). ● Capable of handling rockfall energy of up to 500 kJ while preventing avalanches. ● Design methods are established based on snow pressure observation results. ● Has a structure that can flexibly adapt to undulating terrain. ● Since it is primarily installed on natural slopes, excavation and concrete are unnecessary, and the machinery used is lightweight, allowing for excellent workability and short construction periods. ● Highly permeable, minimizing the impact on the landscape and natural environment around the installation site.

  • Protective fence
  • Other civil engineering works

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