Rockfall protection reinforced soil wall "Geolock Wall"
Rockfall protection reinforced soil wall "Geolock Wall"
A reinforced soil wall with a proven track record of absorbing large-scale impacts using reinforced soil.
The "Geo-Lock Wall" is a reinforced earth wall designed to absorb falling rocks, landslides, and collapsing soil, primarily along roadsides and behind residential houses. It can withstand rockfall energy of up to 5500 kJ and is utilized for a wide range of rockfall countermeasures from small to large scale. It primarily uses soil and geosynthetics as materials. Due to the unique flexible structure of soil structures, it efficiently absorbs impacts and can handle large-scale impact energy. Because it is a soil structure, it can be installed in various terrains, including sites with limited installation space, sites with vertical gradients, and sites with valley topography. Additionally, it does not transmit impact forces to the supporting ground, so in most cases, ground improvement treatments are not necessary. ■ Rockfall, landslide, and collapsing soil countermeasures using reinforced earth ■ Capable of withstanding rockfall energy up to 5500 kJ ■ Available in three types according to the scale of rockfall ■ Over 540 adoption records nationwide Ministry of Land, Infrastructure, Transport and Tourism New Technology Information System (NETIS) Registration Number: HR-990009-V *Registration period has ended NETIS Fiscal Year 2016 Semi-Recommendation Technology *For more details, please download the PDF or feel free to contact us.
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basic information
The geo-lock wall has three types of structures—impact body, transmission body, and resistance body—combined to create three types: Type I, Type II, and Type III, corresponding to the respective rockfall energy. By applying these three types, it is possible to accommodate a wide range of rockfall energy from small to large scale. *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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"Selected as a Recommended Technology by NETIS" The Geo-Lock Wall has been selected by the Ministry of Land, Infrastructure, Transport and Tourism as a "Recommended Technology for FY 2016 (New Technology Utilization System Study Meeting, Ministry of Land, Infrastructure, Transport and Tourism)" as a new technology to improve the technical standards of public works.
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"Three types to accommodate a wide range of rockfall energy" The Geo Rock Wall is a dam-like composite structure composed of a receiving body, a transmission body, and a resistance body, designed to absorb rockfall impacts at the back (receiving body) and is characterized by its excellent shock absorption properties. By combining the three types of structures—receiving body, transmission body, and resistance body—there are three types: Type I, Type II, and Type III, corresponding to the impact energy they can handle. By applying these three types, it is possible to accommodate rockfall energy from small to large scales.
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Shock-Resistant Geogrid (Lockdem) This is a shock-resistant geogrid with special features. By incorporating fibers with different tensile strengths, it exhibits toughness. Since it has the same strength in both directions (50kN × 50kN), it can be laid out in the extension direction.
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[Impact Body (Gandem)] It is the component that first receives the impact and possesses the characteristics of high strength and high elongation to counteract the enormous energy.
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Material bag for transmission (Gioraback) This is a bag made from a sheet with relatively low elongation properties, designed to distribute and transmit impact forces to the resistor with a restraining force.
Line up（3）
| Model number | overview |
|---|---|
| Type I | Corresponding rockfall energy: ~500kJ |
| Type II | Corresponding rockfall energy: ~1500kJ |
| Type III | Corresponding rockfall energy: ~5500kJ |
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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.