Collapse Soil Erosion Protection Fence "Slope Guard Fence Type LE"
Collapse Soil Erosion Protection Fence "Slope Guard Fence Type LE"
Vertical erosion sediment control fence with excellent sediment capture performance and maintenance management.
The "Slope Guard Fence Type LE" is a vertical type of collapse debris protection fence designed to catch collapsing soil near roads or behind houses. It prevents the outflow of soil using panel-type wire nets and wire mesh installed between the support posts. Due to its pile foundation structure, where the posts are directly embedded into the ground, it can be installed in various locations, including sites with limited space or on slopes. By adjusting the height of the fence, it is possible to secure pocket capacity for soil accumulation, minimizing alterations to the slope. It can withstand rockfall energy up to 318 kJ, making it suitable for a wide range of applications. ■ Measures against collapsing soil near roads and behind houses ■ Vertical protection fence with pile foundation structure ■ Structure considering soil impact force and accumulated soil pressure Ministry of Land, Infrastructure, Transport and Tourism New Technology Information Provision System (NETIS) Registration Number: HR-100008-VR *Registration period has ended "Evaluation Promotion Technology (New Technology Utilization System Study Meeting (Ministry of Land, Infrastructure, Transport and Tourism))" *For more details, please download the PDF or feel free to contact us.
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basic information
The Slope Guard Fence Type LE is composed of posts, wire mesh, wire netting, and wire ropes. The foundation is a pile foundation structure integrated with the posts. The posts use a "lotus root-shaped hollow structural steel pipe (LST pipe)" that bundles small-diameter steel pipes within an external steel pipe and fills the gaps with mortar. Compared to conventional concrete-filled steel pipes, it achieves high strength and high toughness. By inserting reinforcing bars into the mortar-filled section, the load-bearing capacity can be further improved. The wire netting is a lattice shape formed by connecting the intersections of the wire ropes with connecting members, excelling in sediment capture functionality and maintenance. Additionally, the wire netting is panel-based and can be removed between each pair of posts. Therefore, it allows for easier removal of accumulated sediment after a disaster compared to conventional gravity retaining walls and protective fences using guard ropes. It can withstand rockfall energy up to 318 kJ, making it suitable for a wide range of applications. *For inquiries or questions regarding products and technologies, please feel free to contact us.*
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Detailed information
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Selected as a NETIS Evaluation Promotion Technology The Slope Guard Fence Type LE has been selected as a "Promotion Evaluation Technology" by the Ministry of Land, Infrastructure, Transport and Tourism in the recommended technologies for fiscal year 2020, aimed at promoting the use of excellent new technologies. It is expected to enhance the technical standards related to public works and other areas.
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High-strength support member "LST Steel Pipe" LST Steel Pipe is a support member that bundles and arranges small-diameter steel pipes within an outer steel pipe, filling the gaps with mortar. Depending on the design conditions, the strength can be enhanced by additionally placing reinforcing steel bars inside the steel pipes. In cases where there are obstacles at the installation site and it is necessary to widen the distance between supports partially, it is also possible to select and install higher-strength members.
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"Wire net structure with no soil leakage" Since it uses a panel-type wire net made by connecting wire ropes in a lattice pattern, there is no soil leakage compared to protective fences where the wire ropes are installed horizontally.
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The wire net can be removed between each post, making maintenance and management easy. Since the wire net can be detached between posts, it allows for easy and quick soil removal work after sediment collection. Additionally, the removed components such as the wire net can be reinstalled, which helps to reduce costs.
Line up（2）
| Model number | overview |
|---|---|
| SGF-LE100 | Corresponding rockfall energy: ~109kJ |
| SGF-LE300 | Corresponding rockfall energy: ~318kJ |
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Company information
Protech Engineering is a manufacturer of natural disaster prevention products, developing protective fences and walls against falling rocks, avalanches, and landslides, with over 3,000 sales achievements across Japan. As a new business area, we are also working on the development of products for debris flows and driftwood countermeasures. With the motto of contributing to society through innovation in natural disaster prevention technology, we have established a consistent production system that encompasses everything from development and proposals to design, manufacturing, and construction, and we are committed to tackling disaster prevention challenges.