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The "SS Hole System" is a rehabilitation method for manholes that require restoration, particularly those that are severely deteriorated and cannot maintain the required strength in their current condition, or are expected to be unable to maintain strength in the future. This method provides a strength equivalent to that of newly constructed manholes. It does not require special materials or construction techniques, and it can be implemented while the sewage is in use. 【Features】 ■ Compatible with manholes of sizes 1 to 4; other sizes available upon consultation ■ Supports manhole depths of up to 10 meters; depths exceeding 10 meters available upon consultation ■ NETIS registered [QS-150045-A] ■ Simple construction using stable materials produced in a factory ■ Load-bearing capacity is equivalent to new installations *On March 15, 2019, it obtained the Construction Technology Review Certificate (Sewage) from the Japan Sewerage New Technology Organization, and on March 18, 2021, the scope was expanded to include manholes of sizes 1 to 4 and depths of up to 10 meters.* *For more details, please refer to the catalog or feel free to contact us.*

• Manhole body
• Water Supply Facilities
• others

The "SS Hole System" is a rehabilitation method for manholes that require restoration, particularly those that are severely deteriorated and cannot maintain the required strength in their current condition, or are expected to be unable to maintain strength in the future. This method provides a strength equivalent to that of newly installed manholes. It does not require special materials or construction techniques, and construction can be carried out while the sewage is in use. 【Features】 ■ Compatible with manholes size 1 to 4; other sizes available upon consultation ■ Can accommodate manhole depths of up to 10 meters; depths exceeding 10 meters available upon consultation ■ NETIS registered [QS-150045-A] ■ Simple construction with stable materials produced in a factory ■ Load-bearing capacity is equivalent to new installations 《On March 15, 2019, obtained the Construction Technology Examination Certificate (Sewage) from the Japan Sewerage New Technology Organization, and on March 18, 2021, expanded the scope of application: manholes size 1 to 4, with depths up to 10 meters》 *For more details, please refer to the catalog or feel free to contact us.

• Manhole body
• Water Supply Facilities
• others

The "SS Hole System" is a rehabilitation method that simply extends the lifespan of aging manholes. It is suitable for manholes with cracks or advanced corrosion, as well as those requiring seismic reinforcement, adapting to manholes with reduced residual strength. This method uses reliable materials that have been traditionally employed, and the rehabilitation material alone provides the strength of a self-supporting pipe, excellent acid resistance, and seismic performance. Additionally, the construction method is simple, allowing all work to be carried out by local contractors. 【Applicable Conditions】 ■ For manholes with cracks ■ For manholes with advanced corrosion ■ For manholes requiring seismic reinforcement ■ For manholes with high hydrogen sulfide concentrations ■ For manholes that cannot be replaced 《Construction Technology Review Certificate (Sewer) obtained 　March 18, 2021, No. 2021 　Scope of application expanded: Manholes No. 1 to No. 4, up to 10m deep》 *For more details, please refer to the PDF materials or feel free to contact us.

• Manhole body
• Dam construction
• Water Supply Facilities

The "SS Hole System" is a rehabilitation method that simply extends the lifespan of aging manholes. It is suitable for manholes with cracks or advanced corrosion, as well as those requiring seismic reinforcement, adapting to manholes with reduced residual strength. This method uses reliable materials that have been traditionally used, and the rehabilitation material alone provides the strength of a self-supporting pipe, excellent acid resistance, and seismic performance. Additionally, the construction method is simple, allowing all work to be carried out by local contractors. 【Applicable Conditions】 ■ For manholes with cracks ■ For manholes with advanced corrosion ■ For manholes requiring seismic reinforcement ■ For manholes with high hydrogen sulfide concentrations ■ For manholes that cannot be replaced 《Construction Technology Review Certificate (Sewage) obtained March 18, 2021, No. 2021 Scope of application expanded: Manholes No. 1 to No. 4, up to 10m deep》 *For more details, please refer to the PDF document or feel free to contact us.

• Manhole body
• Dam construction
• Water Supply Facilities

The "SS Hole System" is a self-supporting manhole rehabilitation method that simply extends the lifespan of aging manholes. It is widely adopted by construction consultants, construction managers, and civil engineers. This method does not require special construction techniques, allowing for rehabilitation in any region of Japan using standard construction practices. As a factory-produced product, it offers consistent quality and stable load-bearing capacity. Additionally, it utilizes reinforced plastic composite pipes with over 40 years of proven performance, demonstrating high acid resistance and seismic resistance, while also maintaining a slim profile to maximize the internal cross-section. 【Features】 ■ Workability: Does not require special construction techniques, allowing for rehabilitation with standard construction practices. ■ Acid Resistance: Reinforced plastic composite pipes with over 40 years of proven performance. ■ Load-Bearing Capacity: Factory-produced, ensuring consistent quality and stable load-bearing capacity. ■ Seismic Resistance: Reinforced plastic composite pipes with high strength and excellent seismic resistance. 《Construction Technology Review Certificate (Sewer) obtained 　March 18, 2021, No. 2021 　Scope of application expanded: Manholes No. 1 to No. 4, up to a depth of 10 meters》

• Renovation and repair methods
• Manhole body

The "SS Hole System" is a self-supporting manhole rehabilitation method that simply extends the lifespan of aging manholes. It is widely adopted by construction consultants, construction managers, and civil engineers. This method does not require any special construction techniques, allowing rehabilitation to be performed in any region of Japan using standard construction practices. As a factory-produced product, it has stable load-bearing capacity without quality variations. Additionally, it uses reinforced plastic composite pipes with over 40 years of proven performance, demonstrating high acid resistance and seismic resistance, while also maintaining a slim profile to maximize the internal cross-section. 【Features】 ■ Workability: Can be rehabilitated using standard construction techniques without the need for special skills ■ Acid Resistance: Reinforced plastic composite pipes with over 40 years of proven performance ■ Load-Bearing Capacity: Factory-produced, ensuring stable load-bearing capacity without quality variations ■ Seismic Resistance: High-strength reinforced plastic composite pipes with excellent seismic resistance 《Construction Technology Review Certificate (Sewage) obtained 　March 18, 2021, No. 2021 　Scope of application expanded: Manholes No. 1 to No. 4, up to a depth of 10m》

• Renovation and repair methods
• Manhole body

The "SS Hole System" is a rehabilitation method that simply extends the lifespan of aging manholes. Being self-supporting, it does not require the residual strength from diagnostic surveys of existing manholes and can also accommodate unreinforced manholes, providing a load-bearing capacity equivalent to new installations. This method does not require special construction techniques, allowing for rehabilitation using general construction skills anywhere in Japan. As a factory-produced product, it has consistent quality with no variability and stable load-bearing capacity. The internal cross-section is maximally secured. 【Features】 ■ Constructability: Does not require special construction techniques, allowing for rehabilitation with general construction skills. ■ Acid Resistance: Reinforced plastic composite pipes with over 40 years of proven performance. ■ Load Capacity: Factory-produced, ensuring consistent quality and stable load-bearing capacity. ■ Seismic Resistance: Reinforced plastic composite pipes with high strength and excellent seismic resistance. 《Acquired the Construction Technology Review Certificate (Sewage) from the Japan Sewerage New Technology Organization 　March 18, 2021, No. 2021 　Scope of expansion: Manholes No. 1 to No. 4, up to a depth of 10m》 *For more details, please refer to the PDF materials or feel free to contact us.

• Manhole body
• Dam construction
• Water Supply Facilities

The "SS Hole System" is a rehabilitation method that simply extends the lifespan of aging manholes. The materials used in this method have undergone various tests to ensure safety. 【Conducted Tests】 ■ SS Block: Compression Test, Load Test ■ Reinforced Plastic Pipe: Axial Pressure Test ■ Reinforced Plastic Pipe: Acid Resistance Test ■ Reinforced Plastic Pipe: Creep Characteristics Test ■ Reinforced Plastic Pipe: External Pressure Fatigue Test 《Construction Technology Review Certificate (Sewer) obtained 　March 18, 2021, No. 2021 　Scope of application expanded: Manholes No. 1 to No. 4, up to a depth of 10m》 *For more details, please refer to the PDF document or feel free to contact us.

• Manhole body

The "SS Hole System" is a rehabilitation method that simply extends the lifespan of aging manholes. Being self-supporting, it does not require the residual strength from diagnostic surveys of existing manholes, and it can also accommodate unreinforced manholes, providing a load-bearing capacity equivalent to new installations. This method does not require special construction techniques, allowing for rehabilitation using standard construction practices anywhere in Japan. As a factory-produced product, it has consistent quality and stable load-bearing capacity. The internal cross-section is maximally secured. 【Features】 ■ Constructability: Can be rehabilitated using standard construction techniques without the need for special skills. ■ Acid resistance: Reinforced plastic composite pipes with over 40 years of proven performance. ■ Load capacity: Factory-produced, ensuring consistent quality and stable load-bearing capacity. ■ Seismic resistance: Reinforced plastic composite pipes with high strength and excellent seismic resistance. 《Obtained the Construction Technology Review Certificate (Sewage) from the Japan Sewerage New Technology Organization 　March 18, 2021, No. 2021 　Scope of application expanded: Manholes No. 1 to No. 4, up to a depth of 10 meters》 *For more details, please refer to the PDF materials or feel free to contact us.

• Manhole body
• Dam construction
• Water Supply Facilities

The "SS Hole System" by iBuild is a method that rehabilitates manholes lacking residual strength due to aging or corrosion, using conventional technology to extend their lifespan. Additionally, it can satisfy seismic performance requirements for structures such as unreinforced manholes that lack seismic resilience. This system is well-suited for manholes that have reduced residual strength, including: ▶ Manholes with cracks ▶ Manholes that have advanced corrosion ▶ Manholes requiring seismic reinforcement ▶ Manholes with high hydrogen sulfide concentrations ▶ Manholes that cannot be replaced 《Construction Technology Review Certificate (Sewage) obtained 　March 18, 2021, No. 2021 　Scope of application expanded: Manholes No. 1 to No. 4, up to a depth of 10m》

• Systems Architecture

The "SS Hole System" by Ibuild is a construction method that rehabilitates manholes with insufficient residual strength due to aging or corrosion, using conventional technology to extend their lifespan. Additionally, it can satisfy seismic performance requirements for structures such as unreinforced manholes. It is suitable for manholes with reduced residual strength, such as: ▶ Manholes with cracks ▶ Manholes that have advanced corrosion ▶ Manholes that require seismic reinforcement ▶ Manholes with high hydrogen sulfide concentrations ▶ Manholes that cannot be replaced 《Construction Technology Review Certificate (Sewage) obtained 　March 18, 2021, No. 2021 　Scope of application expanded: Manholes No. 1 to No. 4, up to a depth of 10m》

• Systems Architecture

For manholes that require rehabilitation, particularly those that are severely deteriorated and cannot secure the required strength in their current condition, or are expected to be unable to secure strength in the future, we have developed the "SS Hole" as a rehabilitation method that has strength equivalent to newly installed manholes. 【Construction Procedure】 1. Remove the deteriorated manhole up to the sloped wall. ↓ 2. Clean and remove the vertical walls and invert of the existing manhole. ↓ 3. Install the "reinforced plastic composite pipe" certified by the Sewerage Association into the existing manhole (compatible with sizes 1 to 4). ↓ 4. Fill the gap between the reinforced plastic composite pipe and the vertical wall of the existing manhole with backfill material. ↓ 5. Install the foundation block for the SS Hole. ↓ 6. Install the slab block for the SS Hole. ↓ 7. After installing the sloped wall, adjustment ring, and iron cover, backfill to complete. *Construction duration is approximately 4 to 5 days (depending on conditions).

• Manhole body

The "SS Hole System" is a self-supporting manhole rehabilitation method that simply extends the lifespan of aging manholes. It is widely adopted by construction consultants, construction managers, and civil engineers. This method does not require special construction techniques, allowing for rehabilitation in any region of Japan using general construction skills. As a factory-produced product, it has stable load-bearing capacity without quality variations. Additionally, it utilizes reinforced plastic composite pipes with over 40 years of proven performance, demonstrating high acid resistance and seismic resistance, while also maintaining a slim profile to maximize the internal cross-section. 【Features】 ■ Workability: Can be rehabilitated using general construction techniques without the need for special skills. ■ Acid Resistance: Reinforced plastic composite pipes with over 40 years of proven performance. ■ Load-Bearing Capacity: Factory-produced, ensuring stable load-bearing capacity without quality variations. ■ Seismic Resistance: Reinforced plastic composite pipes with high strength and excellent seismic resistance. 《Construction Technology Review Certificate (Sewage) obtained 　March 18, 2021, No. 2021 　Scope of application expanded: Manhole sizes 1 to 4, up to a depth of 10m》

• Manhole body

For manholes that require rehabilitation, particularly those that are severely deteriorated and are expected to be unable to maintain the required strength in their current condition, we have developed a rehabilitation method called "SS Hole," which has the same strength as newly installed manholes. 【Construction Procedure】 1. Remove the deteriorated manhole up to the sloped wall. ↓ 2. Clean and remove the vertical walls and invert of the existing manhole. ↓ 3. Install a "reinforced plastic composite pipe" certified by the Sewer Association into the existing manhole (compatible from size 1 to size 4). ↓ 4. Fill the gap between the reinforced plastic composite pipe and the vertical wall of the existing manhole with backfill material. ↓ 5. Install the foundation block for the SS Hole. ↓ 6. Install the slab block for the SS Hole. ↓ 7. After installing the sloped wall, adjustment ring, and iron cover, backfill to complete. *Construction takes approximately 4 to 5 days (depending on conditions).

• Manhole body

The "SS Hole System" by Aibuild is a new manhole rehabilitation method that uses reliable materials traditionally employed, allowing for rehabilitation without relying on the residual strength of existing manholes. It is designed to meet seismic levels 1 and 2, providing peace of mind! Additionally, its ease of installation means it can be implemented in any region across the country. 【Construction Examples】 Client: Fukuoka City Road and Sewer Bureau Construction Year: 2016 Construction Details: Rehabilitation of Manhole No. 3 Manhole Depth: h=2.43m Remarks: SS Hole φ1350, 1 unit Client: Fukuoka City Road and Sewer Bureau Construction Year: 2017 Construction Details: Rehabilitation of Manhole No. 1 Manhole Depth: h=2.08m Remarks: SS Hole φ800, 1 unit Client: Fukuoka City Road and Sewer Bureau Construction Year: 2018 Construction Details: Rehabilitation of Manhole No. 3 Manhole Depth: h=3.69m Remarks: SS Hole φ1350, 1 unit Client: Fukuoka City Road and Sewer Bureau Construction Year: 2020 Construction Details: Rehabilitation of Rectangular Manhole 2000×2000 Manhole Depth: h=6.09m Remarks: SS Hole φ1800, 1 unit *For more details, please refer to the PDF document or feel free to contact us.

• Manhole body

The "SS Hole System" is a self-supporting manhole rehabilitation method that simply extends the lifespan of aging manholes. It is widely adopted by construction consultants, construction managers, and civil engineers. This method does not require any special construction techniques, allowing for rehabilitation in any region of Japan using standard construction practices. As a factory-produced product, it has stable load-bearing capacity without quality variations. Additionally, it uses reinforced plastic composite pipes with over 40 years of proven performance, demonstrating high acid resistance and seismic resistance, while also featuring a slim profile that maximizes the internal cross-section. 【Features】 ■ Workability: Can be rehabilitated using standard construction techniques without the need for special skills ■ Acid resistance: Reinforced plastic composite pipes with over 40 years of proven performance ■ Load capacity: Stable load-bearing capacity with no quality variations due to factory production ■ Seismic resistance: High-strength reinforced plastic composite pipes with excellent seismic resistance 《Construction Technology Review Certificate (Sewer) obtained 　March 18, 2021, No. 2021 　Scope of application expanded: Manholes No. 1 to No. 4, up to a depth of 10m》

• Manhole body

The "SS Hole System" is a rehabilitation method that simply extends the lifespan of aging manholes. Depending on the conditions, it can be completed in a short period of about 4 to 5 days! The construction steps are as follows: 1. Clean and remove the deteriorated sloped walls of the manhole, as well as the vertical walls and invert of the existing manhole. 2. Install the "Reinforced Plastic Composite Pipe Manhole" into the existing manhole and fill the gap between the reinforced plastic and the vertical wall of the existing manhole with backfill material. 3. Install the foundation block and slab block of the SS hole, then backfill after installing the sloped wall, adjustment ring, and iron cover to complete the process. 《Construction Technology Review Certificate (Sewage) obtained March 18, 2021, No. 2021 Scope of application expanded: Manholes No. 1 to No. 4, up to a depth of 10 meters》 *For more details, please refer to the PDF document or feel free to contact us.

• Manhole body
• Dam construction
• Water Supply Facilities

The "SS Hole System" by Aibuild is a new manhole rehabilitation method that utilizes reliable materials traditionally used, allowing for rehabilitation without relying on the remaining strength of existing manholes. It is designed to meet seismic levels 1 and 2, providing peace of mind! Additionally, its ease of installation makes it applicable in any region across the country. 【Construction Examples】 Client: Fukuoka City Road and Sewer Bureau Construction Year: 2016 Construction Details: Rehabilitation of Manhole No. 3 Manhole Depth: h=2.43m Remarks: SS Hole φ1350, 1 unit Client: Fukuoka City Road and Sewer Bureau Construction Year: 2017 Construction Details: Rehabilitation of Manhole No. 1 Manhole Depth: h=2.08m Remarks: SS Hole φ800, 1 unit Client: Fukuoka City Road and Sewer Bureau Construction Year: 2018 Construction Details: Rehabilitation of Manhole No. 3 Manhole Depth: h=3.69m Remarks: SS Hole φ1350, 1 unit Client: Fukuoka City Road and Sewer Bureau Construction Year: 2020 Construction Details: Rehabilitation of Rectangular Manhole 2000×2000 Manhole Depth: h=6.09m Remarks: SS Hole φ1800, 1 unit *For more details, please refer to the PDF document or feel free to contact us.

• Manhole body

The "SS Hole System" is a rehabilitation method that simply extends the lifespan of aging manholes. Depending on the conditions, it can be completed in a short construction period of about 4 to 5 days! The construction steps are as follows: 1. Clean and remove the deteriorated sloped walls of the manhole, the vertical walls of the existing manhole, and the invert. 2. Install the "Reinforced Plastic Composite Pipe Manhole" into the existing manhole, filling the gap between the reinforced plastic and the vertical wall of the existing manhole with backfill material. 3. Install the foundation block and slab block of the SS hole, then backfill after installing the sloped walls, adjustment rings, and iron covers to complete the process. 《Construction Technology Examination Certificate (Sewage) obtained March 18, 2021, No. 2021 Scope of application expanded: Manholes No. 1 to No. 4, up to a depth of 10 meters》 *For more details, please refer to the PDF document or feel free to contact us.

• Manhole body
• Dam construction
• Water Supply Facilities