Three investigations to understand the current situation: [Floor tilt, hollow space under the floor, machine vibrations]
Tilt and unevenness of the floor due to ground subsidence, and machine vibrations caused by hollowing. It is recommended to conduct an investigation to accurately understand the current situation.
Cracks and unevenness in the floor, tilting and sagging of the floor, and vibrations from machinery. Have you been neglecting these issues even though you are aware of them? Before they affect your operations, Mainmark visualizes hidden floor problems through three investigations. ■ Three Investigations to Visualize Floor Issues 【Void Measurement Survey】 We drill several holes of about 10 mm in the concrete floor and use an endoscope to measure the thickness of the concrete floor and the volume of voids beneath it. In addition to understanding the current situation, we perform measurements necessary for construction planning, such as calculating the amount of resin to be used. 【Level (Settlement) Survey】 Using surveying equipment, we measure the height of the concrete floor and quantify the amount of settlement and sagging. The measured values are used to set target values for corrections and to create construction plans. 【Vibration Survey】 We install high-sensitivity vibration sensors on the floor in areas of concern and measure minute vibrations. This allows us to predict the vibration reduction effects of void filling and understand the vibration reduction effects after construction. If the survey results show no issues with voids or settlement, you can continue to use the floor with peace of mind. If any problems are found, we will provide suggestions for improvements. We recommend starting with a survey to understand the current situation. Toll-Free Number: 0120-873-835
basic information
■Support After Investigation If any hazards are found on the floor, experts in architecture and civil engineering, including first-class architects, will select the most suitable construction method from various options and provide improvement proposals. If no issues are found, you can continue to use the space with peace of mind. We also offer regular inspections, so please feel free to consult us. 【TerraTech Method】 This patented method involves drilling small injection holes of 6mm in diameter and injecting a hard polyurethane resin called "TerraTech" under the floor. The expansion force of the resin fills any voids beneath the floor and levels any sunken areas. There is no need to dismantle or remove the floor, and machinery or equipment does not need to be moved, allowing construction to proceed without interrupting your business operations. By filling the voids, vibration suppression effects can also be expected. *Please note that depending on the structure of the floor and the condition of the sinking, construction may be done using 16mm holes. Please feel free to contact us. Toll-free number: 0120-873-835
Price information
It may vary depending on the situation at the site. Please feel free to contact us.
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Model number/Brand name
Investigation of voids under the floor, settlement (level) survey, vibration survey.
Applications/Examples of results
We handle various properties such as factories, warehouses, stores, offices, and apartments. We provide nationwide services from seven locations: Hokkaido, Sendai, Niigata, Tokyo, Nagoya, Osaka, and Fukuoka. Our total construction record is 4,200 cases. Please feel free to contact us regarding vibration suppression of machinery without damaging the floor, as well as correcting floor slopes and unevenness. Toll-free number: 0120-873-835
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News about this product（8）
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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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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 "FOOMA JAPAN 2025" to be held in Tokyo in June 2025.
The exhibition at "FOOMA JAPAN 2025," to be held from June 10 (Tuesday) to June 13 (Friday), 2025, at Tokyo Big Sight, has been confirmed! "FOOMA JAPAN 2025" is one of the largest exhibitions in Japan's food industry, aimed at exchanging technologies and information related to food machinery, equipment, and related devices. Mainmark will be exhibiting for the first time independently, showcasing the "TerraTech Method," which contributes to pest control through void filling under floors and improves productivity and prevents workplace accidents by correcting the slope of factory floors! ■ Main topics to be introduced: - Investigation of voids under floors, level surveys of floors, vibration surveys - Void filling method "TerraTech Method" for correcting floor subsidence without stopping operations - Construction to level tilted buildings - Ground improvement work beneath buildings We look forward to welcoming everyone visiting the Ipros manufacturing site. *For more details, please see the announcement below: https://mainmark.co.jp/news/20250418
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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
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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"