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  6. Non-excavation seismic reinforcement of sewage systems, compatible with Level 2 seismic motion: "Magma Rock Method."

Non-excavation seismic reinforcement of sewage systems, compatible with Level 2 seismic motion: "Magma Rock Method."

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last updated:Sep 28, 2022

東亜グラウト工業
東亜グラウト工業
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A seismic reinforcement technology that improves the joint section of the main sewer pipe to a seismic structure in a short time without excavation. Compatible with diameters from Ø800 to Ø3500. Construction is possible even in a flowing state.

The "Magma Rock Method" is a seismic retrofitting technique that improves existing sewer facilities without seismic structures to a seismic-resistant structure in a short time and without excavation. 【Target Pipe Diameter】 ■ Magma Rock Method: φ800mm to φ3500mm 【Features】 ■ Magma Rock Method - Joint of the pipe - Flexibly follows horizontal and bending displacements caused by earthquakes, maintaining water tightness. Depending on the intended use and target pipe diameter, it is classified into types such as "Magma Rock Method NGJ," "Magma Rock Method mini NGJ," and "Magma Rock Method for Manholes." *For more details, please refer to the related link page or feel free to contact us.

    Sewerage facilitiesVibration isolation, vibration control, and earthquake resistance constructionEarthquake-resistant construction method
04_マグマロック工法(マンホールと管きょの接続部設置イメージ).png

Non-excavation seismic reinforcement of sewage systems, compatible with Level 2 seismic motion: "Magma Rock Method."

04_マグマロック工法(マンホールと管きょの接続部設置イメージ).png
04_マグマロック工法(マンホールと管きょの接続部設置イメージ).png
  • Related Link - http://www.toa-g.co.jp/kanro/taishin/

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Magma Rock Method / NGJ

Magma Rock Method / NGJ

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A demonstration of technology at the booth.

We exhibited at the "Sewerage Exhibition '26 Tokyo."

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We exhibited at the "Sewage Exhibition '26 Tokyo" held from August 4 (Tuesday) to August 7 (Friday), 2026. Thank you very much to everyone who visited our booth. This time, we introduced pipeline maintenance and management technologies under the theme "Comprehensive Pipeline Management Supported by AI and Advanced Technologies." ≪Exhibited Technologies≫ 【Sewage】 - Self-supporting manhole rehabilitation technology using field-curing lining: "VertiLiner Method (Light Curing Method)" - Earthquake resistance technology for sewage facilities: "Magma Rock Method" - Cleaning technology for pressure pipelines using special ice sherbet: "Ice Pig Pipe Cleaning Method" 【AI/DX】 - Leak detection technology using satellites: "Astella Recover" - AI-supported pipeline renewal planning technology: "Asset Advance" - Optimization technology for hydraulic model analysis: "Optimizer" -------------------------------------------------- If you have any questions, please feel free to contact us. We will continue to strive to contribute to the efficient maintenance and management of your water supply and sewage pipelines.

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[Notice] We received a letter of appreciation for the Isehara City Corporate Furusato Tax Donation.

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Our company made a donation to the "Manhole Toilet Unit Development Project at Evacuation Centers," utilizing the corporate hometown tax system promoted by Isehara City, and we received a letter of appreciation from Mayor Tetsuya Hagiwara. Donation System: Isehara City Town, People, and Work Creation Donation Utilization Project (Corporate Hometown Tax) Target Project: "Protecting Lives" (Specific Project Name: Manhole Toilet Unit Development Project at Evacuation Centers) This project aims to improve sanitary conditions at evacuation centers during large-scale disasters by developing manhole toilet units utilizing sewer facilities, ensuring a safe and hygienic toilet environment even during emergencies. In Isehara City's earthquake countermeasure project for sewer facilities, efforts are being made to strengthen the seismic resistance of pipes from disaster prevention bases and evacuation centers to the final treatment plant. In this context, our technology, "Magma Rock Method NGJ/Magma Rock Method Mini NGJ," has been adopted since 2014, and the manhole toilet development project is highly compatible with our technology. As a company specializing in infrastructure maintenance, we will continue to contribute to the safety and security of the community.

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東亜グラウト工業

東亜グラウト工業

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Since its establishment, our company has played a role in national construction, primarily focusing on the "ground improvement field" with our unique grouting method. Subsequently, in response to the changes in social infrastructure development, we have refined our technologies to adapt to the needs of the times and, at times, acquired new ones to expand our business scope. As a result, we have now established three main pillars: "ground improvement business," "slope disaster prevention business," and "pipeline business."

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