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For correcting the slope and subsidence of earthen floors in factories, warehouses, and stores, use the "TerraTech Method."
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[Free Inspection] Teratech Method to Fill Underfloor Cavities and Reduce Machine Vibration
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Three investigations to understand the current situation: [Floor tilt, hollow space under the floor, machine vibrations]
Products/Services（52items）
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Preventing safety and quality defects: Repairing floor tilt and underfloor cavities in the next fiscal year's budget.
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Achieve a "smooth floor" in an auto repair shop in just one day! Measures against floor sinking and unevenness.
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![[Ground Improvement] "Permeation Solidification Injection Method" Ground improvement under buildings.](https://image.mono.ipros.com/public/product/image/e77/2000684290/IPROS24203253601690678054.jpeg?w=280&h=280)
[Ground Improvement] "Permeation Solidification Injection Method" Ground improvement under buildings.
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Polyurethane injection "Teratec method" for addressing floor tilt, subsidence, step differences, and voids.
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"Are you only considering redoing and repainting?" A method with overwhelmingly short construction time.
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Numerous achievements in public works! Settlement floor correction method 'Teratec Method'
news list
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Announcement of participation in "JAPAN SHOP 2026" to be held in Tokyo in March 2026.
The exhibition at "JAPAN SHOP 2026," which will be held from March 3 (Tuesday) to March 6 (Friday) at Tokyo Big Sight, has been confirmed! JAPAN SHOP, a comprehensive exhibition for stores, gathers the latest and most optimal information on store operations for attractive shops and towns. The main highlight will be the introduction of the "TerraTech Method," which allows for the correction of floor unevenness and subsidence, as well as the filling of voids beneath the floor, all without stopping store operations! We look forward to welcoming everyone visiting the Ipros manufacturing site. *For more details, please see the announcement below: https://mainmark.co.jp/news/20260210
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Announcement of participation in "MF-TOKYO 2025" to be held in Tokyo in July 2025.
The exhibition at "MF-TOKYO 2025," which will be held from July 16 (Wednesday) to July 19 (Saturday), 2025, at Tokyo Big Sight, has been confirmed! "MF-TOKYO 2025" is an international exhibition related to forming machinery (presses, sheet metal, forming, automation, and peripheral equipment). Mainmark will be exhibiting for the first time, showcasing safety measures such as floor void filling for heavy machinery and equipment like presses, as well as the "TerraTech Method," which contributes to productivity improvement and prevention of labor accidents by correcting factory floor inclinations. We look forward to welcoming everyone visiting the Ipros manufacturing site. *For more details, please see the announcement below: https://mainmark.co.jp/news/20250529
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Announcement of Participation in "Western Japan Manufacturing Technology Innovation 2025" to be Held in Kokura, Fukuoka in July 2025.
The exhibition "Nihon Manufacturing Technology Innovation 2025," which will be held from July 2 (Wednesday) to July 4 (Friday), 2025, at the West Japan General Exhibition Center, has been confirmed! At "Nihon Manufacturing Technology Innovation 2025," cutting-edge technologies that address various challenges faced by manufacturing sites in the Kyushu and Yamaguchi regions, centered around Kitakyushu, will be showcased. Mainmark will be exhibiting for the first time, introducing the "TerraTech Method," which contributes to safety measures by filling the voids under floors where machinery and equipment are installed, and improving productivity and preventing workplace accidents by correcting floor inclinations. We look forward to welcoming everyone visiting the Ipros manufacturing site. *For more details, please see the announcement below: https://mainmark.co.jp/news/20250522
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We have published examples of the construction work for the sinking correction project.
We have newly published a case study on our service site for the Teratec method. This is a case of settlement correction work carried out at an electronics retail store in Shiga Prefecture. There were concerns about the sagging of the store floor due to ground subsidence, and we were consulted by the company. We understand that our Teratec method was chosen because it allows for construction without interrupting daily operations. Additionally, the positive feedback from a previous project was also a key point. Our company has extensive experience in settlement measures and void filling work while maintaining daily operations for stores and factories. With eight offices nationwide, we are ready to assist you, so please feel free to contact us if you are facing issues with ground subsidence or voids under your floors. ■ Case Study (Teratec Method Service Site): https://teretek.jp/repo/r181
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We have published examples of construction work for cavity filling (BCP measures).
We have newly published construction case studies on the service site for the Teratec method. This is a case of filling voids beneath the floor slab conducted near an automatic rack warehouse in Toyama Prefecture. There were concerns about subsidence of the surrounding roads and building floors due to ground subsidence following the Noto Peninsula earthquake, and we received inquiries from clients regarding this issue. We have been informed that the key factor for choosing our Teratec method was its ability to perform "short-term construction without stopping truck traffic." Additionally, the effectiveness of compacting loosened ground has also been highly evaluated. Our company has extensive experience in subsidence countermeasures and void filling work while maintaining daily operations in logistics warehouses and factories. With eight branches nationwide, we are equipped to respond to issues related to ground subsidence and voids beneath floors, so please feel free to contact us if you have any concerns. ■ Construction case studies (Teratec method service site): https://teretek.jp/repo/r180
Aboutメインマーク
【全国対応】／東京・大阪・札幌・仙台・新潟・金沢・名古屋・福岡
We create reliable technology with forward-thinking ideas, addressing structural inclinations of buildings and the challenges of the underlying ground while maintaining our customers' operations, thereby protecting lives and businesses.
The main business activities of Mainmark involve "returning tilted floors and buildings to a level state" and "preventing existing floors and buildings from tilting." We primarily offer the "TerraTech Method," which allows us to level tilted floors without stopping operations, and we provide various construction proposals tailored to our customers' concerns, from investigation to execution. ■ Nationwide responsible construction with over 5,000 completed projects Mainmark has established offices in eight locations across the country and conducts responsible construction nationwide. We serve a wide range of clients, including factories, stores, warehouses, offices, and apartments. ■ Non-disruptive floor tilt and subsidence correction method "TerraTech Method" Our main service, the "TerraTech Method," is a patented technique that injects TerraTech resin (rigid polyurethane foam resin) into concrete floors that have developed tilts, subsidence, steps, or voids due to ground subsidence or earthquakes. The expansion force of the resin levels the sunken floor and fills the voids beneath it. This technology is also registered with the Ministry of Land, Infrastructure, Transport and Tourism's "NETIS," ensuring its reliability. Patent No. 4896949 "Method for Correcting Sunken Floors" NETIS Registration No. "QS-080007"