A must-see for construction companies and developers! Slim structure "Collapse Debris Protection Fence"
Landslide Protection Fence "Slope Guard Fence Type LE"
Land development in areas designated as special warning zones (red zones) for sediment disasters, such as landslides, under the Sediment Disaster Prevention Act!
The "Slope Guard Fence Type LE" is a vertical type of protective fence designed to catch collapsing soil and is installed near residential areas or along roads that are close to slopes with a risk of landslides. It prevents the outflow of soil using panel-type wire nets and wire mesh installed between the support posts. Compared to traditional gravity retaining walls, it requires less installation space and generally does not need special ground improvement even in poor ground conditions. ■ Compliant with the Disaster Prevention Act ■ Structure considering soil impact force and accumulated soil pressure ■ Vertical protective fence with pile foundation structure ■ Measures against collapsing soil near roads and behind houses ■ Effectively installable in "narrow spaces" and "soft ground" Ministry of Land, Infrastructure, Transport and Tourism New Technology Information Provision System (NETIS) Registration Number: HR-100008-VR *Registration period has ended "Evaluation Promotion Technology (New Technology Utilization System Study Meeting (Ministry of Land, Infrastructure, Transport and Tourism))" *For more details, please download the PDF or feel free to contact us.
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basic information
The Slope Guard Fence Type LE is a protective fence against collapsing earth and debris, composed of posts, wire mesh, wire netting, and wire ropes, featuring a pile foundation structure integrated with the posts. 【Utilizing Land Effectively While Avoiding Hazards】 Its slim structure requires minimal installation space, allowing for a wider area to be secured for development or construction. 【Safe and Secure Structure Based on Legal Standards】 In accordance with the provisions of the Disaster Prevention Law, the structure takes into account the forces of movement, "earth impact force," and the forces of accumulation, "accumulated earth pressure." Its performance has been verified through various experiments that replicate real-scale conditions. 【Adoption of High-Strength Post Components】 The post components utilize our unique lotus root-shaped hollow structural steel pipe (LST steel pipe), achieving high strength and lightweight design. The load-bearing capacity of the post components has been confirmed through load tests using actual specimens. 【Easy Maintenance After a Disaster】 The panel-type wire netting installed on the impact surface can be removed between posts, facilitating the easy removal of accumulated earth after a disaster. The removed wire netting and other components can be reused upon reinstallation. *For inquiries or questions regarding products and technologies, please feel free to contact us.
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Applications/Examples of results
<<Purpose>> 【Land Development for Residential Houses and Apartments】 When constructing residential houses or apartments in areas at risk of landslides, slope failure measures are implemented by installing Slope Guard Fence Type LE against adjacent steep slopes, preventing damage to the land and buildings. This is also suitable as a countermeasure when rebuilding the house you live in is not possible due to being designated as a red zone. 【Construction of Social Welfare and Medical Facilities】 When building commercial facilities, social welfare facilities, schools, or medical facilities in areas at risk of landslides, slope failure measures are implemented by installing Slope Guard Fence Type LE against adjacent steep slopes, preventing damage to the land and facilities. *For more details, please feel free to contact us.
Detailed information
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"Selected as a NETIS Evaluation Promotion Technology" The Slope Guard Fence Type LE has been selected as a technology that is expected to enhance the technical standards related to public works, as part of the recommended technologies for the fiscal year 2020, aimed at promoting the use of excellent new technologies by the Ministry of Land, Infrastructure, Transport and Tourism. It has been designated as an "Evaluation Promotion Technology" by the New Technology Utilization System Study Meeting (Ministry of Land, Infrastructure, Transport and Tourism).
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"Effective installation even in 'narrow spaces' and 'soft ground'" Due to the structure that supports soil and sand with high-strength posts and nets, there is no need to secure installation space like that required for gravity retaining walls, nor is extensive excavation necessary. By adjusting the height of the fence, it is possible to create pockets for soil accumulation, minimizing alterations to the slope. With post components integrated into the foundation, installation is possible on soft ground without the need for ground improvement, depending on the conditions.
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"Land development for residential houses and condominiums" When constructing residential houses or condominiums in areas at risk of landslides, slope guard fences of type LE are installed as a countermeasure against slope collapse on adjacent steep slopes, preventing damage to the land and buildings. This is also suitable as a measure when rebuilding the house you live in is not possible due to being designated as a red zone.
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"Wire net structure that prevents the passage of soil and sand" Since it uses a panel-type wire net connected in a lattice pattern, there is no passage of soil and sand compared to protective fences where the wire ropes are installed horizontally.
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The wire net can be easily removed between the posts for maintenance and management. Since the wire net can be detached between the posts, it allows for easy and quick soil removal work after sediment collection. Additionally, the removed components such as the wire net can be reinstalled, which helps to reduce costs.
Line up（2）
| Model number | overview |
|---|---|
| SGF-LE100 | Corresponding rockfall energy: ~109kJ |
| SGF-LE300 | Corresponding rockfall energy: ~318kJ |
catalog（3）
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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.