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Here is a case study of the "Stronger Method" implemented in Hyogo Prefecture. As a result of the construction, the fence height increased from 1.55m to 3.0m, with a construction length of L = 13.0m. This method distributes the load, which was previously supported by a single span in conventional methods, across multiple spans by connecting the tops of the posts with steel rods. 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 reinforcement type (Fence height: H = 1.55 → 3.0m, Construction length: L = 13.0m) ■ Hyogo Prefecture (Construction: FY 2015, Railway proximity work) *For more details, please download the PDF or feel free to contact us.

• Protective fence

We would like to introduce a comparison of the construction procedures of the "DON'TDIG method" for repairing intrusion prevention fences with general construction methods. The inspection work of the "DON'TDIG method" only involves checking for cracks or damage in the existing foundation and confirming that there is no rust or cross-sectional loss in the existing posts, eliminating the need for buried cable surveys or investigations of buried cultural heritage areas that are typically required in general methods. Additionally, this method does not require the removal of existing foundations, the installation of posts and wire mesh, or the embedding of steel pipe foundations (L=600mm) into the ground. 【Inspection Work of the DON'TDIG Method】 ■ Check for cracks or damage in the existing foundation ■ Confirm that there is no rust or cross-sectional loss in the existing posts *For more details, please download the PDF or feel free to contact us.

• Protective fence

The "DON'T DIG Method" allows for the installation of new poles without excavation by cutting and reusing part of the existing poles. It can be installed without being affected by the roots of trees and other vegetation in mountainous areas, and it does not generate industrial waste. It accommodates various pole shapes and does not require archaeological surveys for buried cultural properties. Additionally, since no digging is involved, it does not damage buried cables. 【Features】 ■ Utilizes existing poles for construction ■ Shorter construction period due to no excavation ■ No industrial waste generated ■ Not affected by the roots of trees and other vegetation ■ Compatible with various pole shapes *For more details, please refer to the PDF document or feel free to contact us.

• Renovation and repair methods

The "Stronger Method" is a rockfall countermeasure technique that allows for reinforcement and raising the height of existing rockfall protection fences without processing or dismantling them. No special equipment or skills are required, and it can be completed in just a few days. It enhances rockfall capture performance with "short construction time and low cost." It is compatible with H-beam type protection fences and has been widely adopted in railways and highways. Currently, we are offering a collection of construction case studies for projects near railways. 【Features】 ■ Construction costs are lower compared to new installation of protection fences ■ Can be constructed without special equipment such as heavy machinery ■ Short construction time allows for brief traffic restrictions ■ Achieved reinforcement of approximately 30 meters of protection fence in 3 days ■ NETIS registered method (Number: HR-140004-A) *Catalogs and case study collections can be viewed via "PDF Download."

• Renovation and repair methods

This document introduces examples of the "Stronger Method" construction. This method allows for the reinforcement and height increase of existing rockfall protection fences without special processing, utilizing them as they are. Various construction examples conducted nationwide are presented with accompanying photographs. 【Examples Listed (Excerpt)】 ■ Partial height increase type: Fence height H = 2.0 → 3.0, Construction length L = 22.9m ■ Partial height increase type: Fence height H = 1.5 → 3.0, Construction length L = 42.7m ■ Partial height increase type: Fence height H = 1.5 → 4.0, Construction length L = 35.9m ■ Partial height increase type: Fence height H = 2.0 → 3.0, Construction length L = 21.0m ■ Partial height increase type: Fence height H = 1.5 → 3.0, Construction length L = 12.0m *For more details, please refer to the PDF document or feel free to contact us.

• Renovation and repair methods

We offer products such as the "Triangle Fence," which has successfully reduced tree cutting significantly, the "E-Fence," which enables the recycling of all components, and the "Stronger Method," which utilizes existing stock. Using the know-how cultivated through extensive experience and new technologies, we promote the development of environmentally friendly products while creating safe and comfortable urban spaces in harmony with the natural environment. We aim to be a trusted company in society by continuously creating new value. 【Sales Items (Excerpt)】 ■ Triangle Fence (Environmentally friendly avalanche and rockfall protection fence) ■ E-Fence (Simple high-performance avalanche and rockfall protection fence) ■ Stronger Method (Reinforcement method for existing rockfall protection fences) ■ High Beam (High-performance rockfall cushioning material) ■ Flexible Bulb Anchor *For more details, please refer to the PDF document or feel free to contact us.

• Renovation and repair methods

Here is a case study of the "Stronger Method" implemented in Shizuoka Prefecture. As a result of the construction, the fence height increased from 2.0m to 3.0m. The total length of the construction is L = 24.4 + 23.8 + 18.7m. This method can reduce the impact on surrounding residents, such as traffic restrictions. Additionally, there is no need for noise, dust, or high alkalinity water treatment measures during concrete demolition. [Case Study] ■ Raised Type - Fence Height: H = 2.0 → 3.0m - Construction Length: L = 24.4 + 23.8 + 18.7m ■ Shizuoka Prefecture (Construction: FY 2015-2017) *For more details, please refer to the PDF document or feel free to contact us.

• Protective fence

Here is a case study of the "Stronger Method" implemented in Shizuoka Prefecture. As a result of the construction, the fence height increased from 2.0m to 3.0m, with a construction length of L = 27.0m. This method does not require the use of small heavy machinery, eliminating the need for surrounding tree removal. Additionally, the materials are lightweight, making the construction process simple. [Case Study] ■Partial elevation type (Fence height: H = 2.0 → 3.0m, Construction length: L = 27.0m) ■Shizuoka Prefecture (Construction: Fiscal Year 2018) *For more details, please refer to the PDF document or feel free to contact us.

• Protective fence

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.

• Protective fence

Here is a case study of the "Stronger Method" implemented in Shizuoka Prefecture. As a result of the construction, the fence height increased from 2.0m to 3.0m, with a construction length of L = 18.4m. This method does not require special tools or skilled workers for the installation of components. Additionally, all materials used are factory-made, eliminating the need for processing work on-site. [Case Study] ■ Raised type (Fence height: H = 2.0 → 3.0m, Construction length: L = 18.4m) ■ Shizuoka Prefecture (Construction: Fiscal Year 30) *For more details, please refer to the PDF materials or feel free to contact us.

• Protective fence

Here is a case study of the "Stronger Method" implemented in Yamanashi Prefecture. As a result of the construction, the fence height increased from 2.0m to 3.0m, with a construction length of L = 60.0m. This method does not require the use of small heavy machinery, eliminating the need for tree cutting in the surrounding area. Additionally, there is no need for excavation of the slope or the use of concrete during construction, allowing for the reuse of existing structures. [Case Study] ■ Raised type (Fence height: H = 2.0 → 3.0m, Construction length: L = 60.0m) ■ Yamanashi Prefecture (Construction: Fiscal Year 2018) *For more details, please refer to the PDF document or feel free to contact us.

• Protective fence

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.

• Protective fence

Here is a case study of the "Stronger Method" conducted in Hyogo Prefecture. As a result of the construction, the fence height increased from 2.0m to 3.0m, with a construction length of L = 39.5m. This method restrains the twisting of the posts with upper and lower reinforcement brackets, allowing for buckling prevention at the base of the posts. Additionally, since no small machinery is used, there is no need to cut down surrounding trees. [Case Study] ■ Raised type (Fence height: H = 2.0 → 3.0m, Construction length: L = 39.5m) ■ Hyogo Prefecture (Construction: Fiscal Year 2018) *For more details, please refer to the PDF document or feel free to contact us.

• Protective fence

Here is a case study of the "Stronger Method" implemented in Hyogo Prefecture. As a result of the construction, the fence height increased from 2.0m to 3.0m, with a construction length of L = 24.1m. This method utilizes a uniquely developed high-strength wire mesh made of three strands of steel wire, which prevents the mesh from being penetrated. Additionally, for areas where the fence height is a concern, height-raising materials can be used to increase the fence height. 【Case Study】 ■Height-raising type (Fence height: H = 2.0 → 3.0m, Construction length: L = 24.1m) ■Hyogo Prefecture (Construction: Fiscal Year 2018) *For more details, please refer to the PDF document or feel free to contact us.

• Protective fence

Here is a case study of the "Stronger Method" implemented in Hyogo Prefecture. As a result of the construction, the fence height increased from 2.0m to 3.0m, with a construction length of L = 36.0m. The installation of the components for this method does not require special tools or skilled workers. Additionally, all materials used are factory-made, eliminating the need for processing work on-site. [Case Study] ■ Raised type (Fence height: H = 2.0 → 3.0m, Construction length: L = 36.0m) ■ Hyogo Prefecture (Construction: Fiscal Year 2018) *For more details, please refer to the PDF document or feel free to contact us.

• Protective fence

Here is a case study of the "Stronger Method" implemented in Hyogo Prefecture. As a result of the construction, the fence height increased from 2.0m to 3.0m, with a construction length of L = 69.0m. This method does not require the use of small heavy machinery, so there is no need to cut down surrounding trees. Additionally, excavation of slopes and the use of concrete are not necessary during construction, allowing for the reuse of existing structures. 【Case Study】 ■ Raised type (Fence height: H = 2.0 → 3.0m, Construction length: L = 69.0m) ■ Hyogo Prefecture (Construction: Fiscal Year 2018) *For more details, please refer to the PDF document or feel free to contact us.

• Protective fence

Here is a case study of the "Stronger Method" implemented in Hyogo Prefecture. As a result of the construction, the fence height increased from 2.0m to 3.0m. The construction length was L = 39.1m. This method allows for the existing rockfall protection fence to be utilized as is, enabling simple reinforcement and height increase without any special processing of the facility. [Case Study] ■ Height Increase Type (Fence Height: H = 2.0 → 3.0m, Construction Length: L = 39.1m) ■ Hyogo Prefecture (Construction: Fiscal Year 2018) *For more details, please refer to the PDF document or feel free to contact us.

• Protective fence

Our company offers a rockfall protection fence reinforcement method called "Stronger Method," which allows for the reuse of bent posts by utilizing existing structures. First, remove the wire attachment fittings and cut the post at the base (250mm from the top). Then, attach the post connection member (only bolted). Next, install the raised post and reattach the removed wire attachment fittings. Compared to base plate systems or complete demolition and new installation, the cost is less than half, and the construction period can be completed in one day. [Example of Adoption] ■ Location: Yamanashi Prefecture ■ Type: Raised type ■ Work Procedure 1. Remove the wire attachment fittings and cut the post at the base (250mm from the top). 2. Attach the post connection member (only bolted). 3. Install the raised post and reattach the removed wire attachment fittings. *For more details, please refer to the PDF document or feel free to contact us.

• Rockfall prevention agent

We would like to introduce an example of the "Stronger Method," a rockfall protection fence reinforcement project that utilizes existing structures in Yamanashi Prefecture. There were instances of rockfalls exceeding the fence, and there was a desire to increase the height of the fence. Additionally, although a high-energy protection fence had already been designed, it was costly. There were also bent posts that the client wanted to reuse if possible, which led to the adoption of this method. The height was changed from 2m to 3m using a raising type to meet the desired fence height. Furthermore, this method allows for approximately half the cost and significant shortening of the construction period. Regarding the bent posts, part of the base of the posts was retained and raised to accommodate the situation. 【Adoption Example】 ■ Location: Yamanashi Prefecture ■ Type: Raising Type ■ Reasons for Adoption - There were rockfalls exceeding the fence, and there was a desire to increase the fence height. → Addressed with the raising type (H=2.0→3.0m) - A high-energy protection fence had already been designed, but it was costly. → Approximately half the cost and significant shortening of the construction period. - There were bent posts that the client wanted to reuse. → Raised by retaining part of the base of the posts. *For more details, please refer to the PDF materials or feel free to contact us.

• Rockfall prevention agent

We would like to introduce an example of the "Stronger Method," which is a reinforcement work for rockfall protection fences utilizing existing structures in Fukushima Prefecture. There were rockfalls that exceeded the fence, and there was a desire to increase the height of the fence. Additionally, it was adopted with consideration for the landscape and to accommodate landscape colors. The height was changed from 1.5m to 2.5m using a raised type to meet the desired fence height. Furthermore, we were able to accommodate landscape colors with hot-dip galvanized coating plus painting. 【Adoption Example】 ■ Location: Fukushima Prefecture ■ Type: Raised type ■ Reasons for Adoption - There were rockfalls that exceeded the fence, and there was a desire to increase the height of the fence. → Addressed with a raised type (H = 1.5m to 2.5m) - There was a desire to accommodate landscape colors with consideration for the landscape. → Possible to accommodate with hot-dip galvanizing plus painting. *For more details, please refer to the PDF materials or feel free to contact us.

• Rockfall prevention agent

This document introduces examples of the "Stronger Method," a reinforcement technique for rockfall protection fences that utilizes existing structures. It includes a case from Fukushima Prefecture that addressed the request to raise the fence height due to rockfalls over the fence (from H=1.5m to 2.5m) with a raised type, as well as a case that dealt with the desire to reuse bent posts. In addition to detailed reasons for adoption, the document includes before-and-after photos, making it easy to compare the conditions before and after construction. [Contents] ■ Adoption examples (Fukushima Prefecture) ■ Adoption examples (Yamanashi Prefecture) ■ Replacement of bent posts is possible! *For more details, please refer to the PDF document or feel free to contact us.

• Protective fence

This document is about the simple construction method "Stronger Method" for attaching components to existing rockfall protection fences. It includes numerous examples with photos based on requests such as, "We planned to demolish and rebuild the retaining wall, but we have repaired it multiple times and want to minimize damage to the wall," and "Since this is a major national road, we want to shorten the traffic regulation period." Additionally, the features and benefits of the "Stronger Method" are also introduced. [Contents (excerpt)] ■ What is Stone Guard? ■ Application range of the Stronger Method ■ Features of the Stronger Method ■ Mechanism of the Stronger Method ■ Examples of adoption *For more details, please refer to the PDF document or feel free to contact us.

• Protective fence

The "Stronger Method" is a rockfall countermeasure technique that allows for reinforcement and heightening of existing rockfall protection fences without processing or dismantling them. No special equipment or skills are required, and it can be completed in just a few days. It enhances rockfall capture performance with "short construction periods and low costs." It is compatible with H-beam type protection fences and has been widely adopted in railways and highways. Currently, we are offering a collection of case studies for construction near railways. 【Features】 ■ Construction costs are lower compared to new installation of protection fences ■ Can be constructed without special equipment such as heavy machinery ■ Short construction periods allow for brief traffic restrictions ■ Achieved reinforcement of approximately 30 meters of protection fence in 3 days ■ NETIS registered method (Number: HR-140004-A) *Catalogs and case study collections can be viewed via "PDF Download."

• Renovation and repair methods

The "Stronger Method" utilizes existing rockfall protection fences as they are, allowing for easy reinforcement and height increase without special processing. It can double the rockfall capture performance with "simple, low-cost, and short-term" height increases! It is compatible with both new and existing H-beam type rockfall protection fences. ♦ If the protection fence is damaged or rocks have flown over to the road or houses, simple countermeasures are needed... ♦ Rebuilding incurs high construction costs. If we could reduce costs... ♦ We want to minimize the construction period as much as possible... If you have any concerns like these, please feel free to consult with us. *For more details on case studies, please contact us or download the catalog to view.

• Protective fence

We are currently offering a catalog featuring case studies of the Stronger Method, which has been adopted by the Ministry of Land, Infrastructure, Transport and Tourism! For more details, please download it. The Stronger Method is a completely new rockfall countermeasure technique that utilizes existing rockfall protection fences without any special processing, allowing for reinforcement and an increase in fence height. It can raise the fence height "easily, inexpensively, and in a short period," and the rockfall capture performance is more than doubled! It is compatible with both new and existing H-beam type rockfall protection fences. Adoption Case (Ministry of Land, Infrastructure, Transport and Tourism) ● Initially planned to "break down the retaining wall → new construction," but wanted to minimize damage to the retaining wall as it had been repaired multiple times. 　→ No need for any demolition (or core drilling) of the retaining wall concrete. ● As it is a major national road, we wanted to shorten the traffic regulation period. 　→ Only one day of regulation during material delivery (normally, regulations last about two weeks). ● We wanted to utilize existing stock and reduce costs. 　→ No processing required for existing structures, resulting in about a 20% cost reduction compared to new construction. *For more details about the case studies, please contact us or download the catalog to view.

• Protective fence

Do you have concerns about rockfall protection fences? "The fence has been damaged, and rocks have flown over to the road and houses, but simple countermeasures are..." "Reconstruction incurs high construction costs. If we could reduce costs..." "I want to keep the construction period as short as possible..." All these requests can be resolved with the Stronger Method! 【What is the Stronger Method?】 This method allows for the reinforcement and heightening of existing rockfall protection fences without any special processing of the facilities, using them as they are. ■ No need for safety measures during construction, weeks of traffic regulation costs, or environmental measures, making it low-cost! ■ Incredibly simple! ⇒ You can check the construction method in the video below. ■ On-site construction is completed in a short period! *We are currently offering a catalog with case studies of the Stronger Method, which has also been adopted by the Ministry of Land, Infrastructure, Transport and Tourism! Please download for more details.

• Protective fence

The Stronger Method is a completely new rockfall countermeasure technique that utilizes existing rockfall protection fences without any special processing for reinforcement and achieves an increase in fence height. It allows for a "simple, inexpensive, and short-term" increase in fence height, with rockfall capture performance more than doubled! It is compatible with both newly installed and existing H-beam type rockfall protection fences. *We are currently offering a catalog with case studies of the Stronger Method, which has also been adopted by the Ministry of Land, Infrastructure, Transport and Tourism! Please download for more details. 【Features】 ■ No need for large-scale traffic regulations or detours due to heavy machinery! ■ Reinforcement is done without processing, allowing for quick and economical construction! ■ NETIS Registration No: HR-140004-A *For more details, please contact us or download the catalog to view.

• Protective fence

"E-FENCE" is a high-performance rockfall and avalanche protection fence with a simple structure. It features a loop rope structure that prevents the reduction of effective height, and utilizes a newly developed wire made of three high-strength steel wires twisted together, known as "E-FENCE wire mesh," which possesses both high rigidity and strength along with excellent deformation capability. It has more than double the strength and energy absorption capacity of commonly used diamond wire mesh. 【Features】 ■ No need to replace posts during rockfall ■ Prevents rocks from jumping over or slipping through ■ Prevents reduction of effective height ■ Functions as a standard avalanche prevention fence during snowfall ■ Extremely affordable and economical *For more details, please refer to the PDF document or feel free to contact us.

• Renovation and repair methods

The "Triangular Fence" is a protective fence that effectively works against both falling rocks and avalanches, serving as a dual-purpose rockfall protection and avalanche prevention barrier. The entire fence absorbs the energy of falling rocks, and the large deflection of the net helps to suppress the impact. There are support posts on the valley side of the fence, and the net is bent towards the valley side, allowing it to capture falling rocks without letting them escape. Additionally, there is no need to create a concrete foundation, and significant excavation is not required. It can be installed with minimal tree cutting, contributing to CO2 reduction. 【Features】 ■ The entire protective fence absorbs the energy of falling rocks ■ The large deflection of the net suppresses impact force ■ Captures falling rocks without letting them escape ■ Prevents falling rocks from slipping out from under the fence ■ Remains stable even when rockfall, avalanche, or snow pressure acts diagonally on the fence surface due to its triangular truss structure *For more details, please refer to the PDF document or feel free to contact us.

• Renovation and repair methods

"High Beam" is a rockfall mitigation material that dramatically enhances rockfall energy absorption performance by reinforcing expanded polystyrene with high-strength polypropylene bands (PP bands). Due to the restraining reinforcement effect of the PP bands, each block becomes less likely to break and tends to exhibit behavior closer to that of an elastic body, making it durable and excellent in recovery power. Compared to conventional expanded polystyrene, it allows for a reduction in stacking thickness, enabling significant cost savings. 【Features】 ■ Reinforced restraint of expanded polystyrene with high-strength PP bands ■ Durable and excellent recovery power ■ Reduced stacking thickness ■ Widely disperses impact pressure ■ Contributes to cost reduction *For more details, please refer to the PDF document or feel free to contact us.

• Earthworks