Shizuoka Prefecture construction case study: Reinforcement method for existing rockfall protection fences - Noise control measures during demolition!
Noise, dust, and high alkaline water treatment measures during demolition are not required. It is a simple construction method.
Here is a case study of the "Stronger Method" implemented in Shizuoka Prefecture. As a result of the construction, the fence height increased from 1.5m to 2.0m, with a construction length of L = 30.0m. This method connects the tops of the posts with steel rods, allowing the load that was previously supported by a single span to be distributed across multiple spans. Additionally, in areas where there are concerns about insufficient fence height, height-raising materials can be used to increase the fence height. [Case Study] ■Height-raising type (Fence height: H = 1.5 → 2.0m, Construction length: L = 30.0m) ■Shizuoka Prefecture (Construction: Fiscal Year 2018) *For more details, please refer to the PDF document or feel free to contact us.
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【Construction Method Features】 ■ Performance - The upper and lower reinforcement brackets restrain the twisting of the posts and prevent buckling at the base of the posts. - By connecting the tops of the posts with steel rods, the loads that were previously supported by a single span in conventional methods are distributed across multiple spans. ■ Workability - No special tools or skilled workers are required for the installation of components. - The components are lightweight, making installation simple. ■ Environmental Impact - No need to cut down surrounding trees as small machinery is not used. - Reduced impact on local residents, such as traffic restrictions. *For more details, please refer to the PDF document or feel free to contact us.
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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.
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