Fukushima Prefecture construction case study: Reinforcement method for existing rockfall protection fences using a method that does not require new installation.
NETIS Registration Number HR-140004-A: Construction Case of Elevated Stronger Method
Here is an introduction to a construction case of the "Stronger Method" carried out in Fukushima Prefecture. As a result of the construction, the fence height increased from 1.5m to 2.5m. The construction length was L = 90.0m. This method allows for the existing rockfall protection fence to be utilized as is, enabling simple reinforcement and height increase without any special processing to the facility. 【Case Study】 ■Height Increase Type (Fence Height: H = 1.5 → 2.5m, Construction Length: L = 90.0m) ■Fukushima Prefecture (Construction: Fiscal Year 2018) *For more details, please refer to the PDF document or feel free to contact us.
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【Other Construction Examples】 ■Hyogo Prefecture ■Yamanashi Prefecture ■Shizuoka Prefecture ■Ministry of Land, Infrastructure, Transport and Tourism, etc. *For more details, please refer to the PDF document or feel free to contact us.
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Until now, we have been cutting down trees on the slopes, excavating the ground to install concrete foundations, and then placing avalanche prevention shelves and rockfall protection shelves on top. However, the avalanche prevention shelves are ineffective against rockfalls, and the rockfall protection shelves are powerless against avalanches. The "triangular fence" developed and sold by our company effectively functions against both avalanches and rockfalls, and it does not require any excavation of the ground or concrete work, which could cause secondary disasters. It can be easily constructed using only lightweight materials, making it an environmentally friendly construction method suitable for the 21st century that does not compromise the landscape.