Snow net type avalanche prevention and rockfall protection combined fence "Triangle Fence"
Snow net type avalanche prevention and rockfall protection combined fence "Triangle Fence"
A snow net equipped with comprehensive measures against avalanches and falling rocks.
The "Triangle Fence" is an avalanche prevention fence installed on slopes. It can accommodate snow depths of up to 5.0 meters. Additionally, it can also handle rockfall energy of up to 500 kJ as a rockfall protection fence. Conventional avalanche prevention fences use large concrete foundations, which can lead to larger foundations in soft ground, posing challenges in terms of construction and safety. The Triangle Fence is anchored to the ground, allowing it to be installed on relatively soft ground without the need for ground improvement. ■ Slope-installed avalanche prevention fence ■ Accommodates snow depths of up to 5.0 meters ■ Handles rockfall energy of up to 500 kJ ■ Over 290 successful installations nationwide Ministry of Land, Infrastructure, Transport and Tourism New Technology Information System (NETIS) registration number: HR-020009-VE *Registration period has ended *For more details, please download the PDF or feel free to contact us.
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basic information
The triangular fence is composed of posts, wire mesh, wire netting, and wire ropes. In the case of rockfall measures exceeding 100 kJ, the application range can be expanded to 500 kJ by adding a cushioning device. The foundation has an anchor structure, and all anchors use wire anchors. By alternately and continuously installing nets in the shape of equilateral triangles and inverted triangles, snow pressure and rockfall energy are efficiently absorbed by the entire structure. *For any questions or inquiries regarding products or technologies, please feel free to contact us.*
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Detailed information
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"Anchor structure that can be installed on weak ground" The triangular fence is anchored to the ground, allowing it to be installed on sites with relatively weak soil without the need for ground improvement. Additionally, there is minimal excavation of the ground, and the alteration of slopes is kept to a minimum.
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"Excellent workability even on slopes" It can be applied in sites where the use of cranes is difficult, such as on slopes or in mountainous areas, because it can be constructed with relatively small heavy machinery.
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It can also be used in conjunction with rockfall measures. It can handle rockfall energy up to 500 kJ, making it effective for avalanche measures on slopes with rockfall risks and for rockfall measures in snow-covered areas.
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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.