Avalanche protection fence "Slope Guard Fence Type LS"
Avalanche protection fence "Slope Guard Fence Type LS"
Vertical fences effective for a wide range of measures from avalanche prevention to avalanche protection.
The "Slope Guard Fence Type LS" is a vertical cantilever prevention, avalanche prevention, and avalanche protection fence primarily installed along roadsides or behind houses to prevent avalanche damage. It is designed considering slope snow pressure, load during snow, and avalanche impact force, making it suitable for both avalanche prevention works (cantilever prevention fences, avalanche prevention fences) and avalanche protection works (avalanche protection fences). ■ Avalanche measures for roadsides and behind houses ■ Vertical protective fence with a pile foundation structure ■ Effective for both avalanche prevention and avalanche protection Ministry of Land, Infrastructure, Transport and Tourism New Technology Information Provision System (NETIS) Registration Number: HR-100008-VR *Publication 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 LS consists of posts, wire mesh, and wire ropes. The foundation is a pile foundation structure integrated with the posts. In cases of heavy loads, a back anchor may be installed on the mountain side. The posts use a "lotus root-shaped hollow structural steel pipe (LST steel)" which bundles small-diameter steel pipes arranged within an external steel pipe, filling the gaps with mortar. Compared to conventional concrete-filled steel pipes, it achieves high strength and high toughness. *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 LS has been selected as a "Promotion Evaluation Technology" by the Ministry of Land, Infrastructure, Transport and Tourism, as part of 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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【Overhang Prevention Fence】 This is a countermeasure against the sliding of accumulated snow that occurs at the toe of cut slopes. It is installed at the toe to prevent snow that has accumulated on the slope from gliding out onto the road. Additionally, since the foundation is a pile structure, it can be constructed in narrow areas. It can be economically installed in sites with limited space where conventional methods are difficult, or in sites where large-scale cutting is to be avoided.
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Avalanche Prevention Fence This is a countermeasure installed on slopes where there is a risk of avalanches occurring, aimed at preventing surface and full-depth avalanches before they happen. The Slope Guard Fence Type LS has a smaller excavation range compared to conventional methods, minimizing changes to the terrain. It features a structure that prevents avalanches across the entire countermeasure area using a continuous arrangement of wire mesh and wire ropes in the extension direction, eliminating the snow slipping through that is seen in traditional methods.
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Avalanche Protection Fence This is a countermeasure that intercepts an occurring avalanche at a deposition area or the end of a path to prevent the avalanche from reaching protected objects. Conventional methods such as gravity retaining walls may require significant excavation of the slope if the necessary pocket volume cannot be secured. The Slope Guard Fence Type LS can be installed with minimal constraints related to installation location, space, and ground conditions.
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**Response to Falling Rocks** Due to the elasticity of the wire rope, it can be used to catch small-scale falling rocks, serving as a rockfall protection fence and as an avalanche countermeasure in snowy cold regions associated with falling rocks.
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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.