High-energy absorption, high-toughness rock sheds that create ultimate safety for roads and railways.
The "Super Rock Shed" is a construction method that covers roads and railways to prevent falling rocks from directly hitting the surface. A full-scale drop weight experiment, the largest in the world, was conducted, confirming that it can withstand rockfall energy of up to 8000 kJ. Since the main structure and the outer surface of the slab are made of steel, there are no secondary disasters caused by concrete spalling or similar issues. ■ Protects roads and railways from falling rocks ■ Capable of withstanding rockfall energy up to 8000 kJ ■ Effective for large-scale rockfall countermeasures Ministry of Land, Infrastructure, Transport and Tourism New Technology Information System (NETIS) Registration Number: HR-030001-A *For more details, please download the PDF or feel free to contact us.
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basic information
The super lock shed uses concrete-filled steel tubes with unbonded PC steel bars inserted into the main structure, and employs steel-concrete composite floor slabs. The slabs transmit loads to the main structure and have the effect of distributing loads to the continuously adjacent main structures. The main structural members deform while maintaining the necessary load-bearing capacity due to their extremely high toughness, absorbing rockfall energy. *For any questions or inquiries regarding products or technology, please feel free to contact us.*
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Detailed information
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A hybrid structure with high toughness has been achieved by using concrete-filled steel tubes with unbonded PC steel materials in the main structure and employing steel-concrete composite floor slabs in the slabs, resulting in significant load-bearing capacity and high energy absorption performance. The main structure can deform while maintaining a certain level of strength, allowing it to retain a survival space without completely collapsing even under rockfalls exceeding the design level.
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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.