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  3. Construction, work and methods
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  5. Ground foundation construction method
  6. WT method

WT method

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last updated:Dec 15, 2025

吉光組
吉光組
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Application to the installation of various facilities! Construction is easy even on soft ground or ground with high groundwater levels.

The "WT Method" is a construction technique that improves underground areas such as parking lots using the TNF method to create a reservoir consisting of walls on four sides and a bottom slab. By forming the contact surface between the bottom slab and the underlying ground in a grid pattern, it maintains the stability of the structure even on soft ground. Additionally, since the improved ground serves as a container, construction work such as rebar and concrete is almost unnecessary. It allows for construction in a shorter period compared to conventional storage facilities. 【Features】 ■ Easy to construct even on soft ground or ground with a high water table ■ Almost no need for construction work such as rebar and concrete since the improved ground acts as a container ■ Allows for construction in a shorter period compared to conventional storage facilities ■ Can be freely shaped, enabling the installation of oil tanks and piping systems *For more details, please refer to the PDF materials or feel free to contact us.

    Ground improvementGround foundation construction method
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WT method

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  • Related Link - https://www.yoshimitsugumi.co.jp/service/
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For more details, please refer to the PDF document or feel free to contact us.

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Applications/Examples of results

【Usage】 ■Soft ground ■Ground with high groundwater levels *For more details, please refer to the PDF document or feel free to contact us.

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WT method

WT method

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The Noto Reconstruction Office of the Ministry of Land, Infrastructure, Transport and Tourism has featured our 3D printer in the Nikkei newspaper.

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The official X account of the Noto Reconstruction Office of the Ministry of Land, Infrastructure, Transport and Tourism and the Nihon Keizai Shimbun have published that our 3D printer has been adopted for the reconstruction of Noto. The official X account of the Noto Reconstruction Office introduces the use of our products in the restoration work of the Noto Expressway. Additionally, the Nihon Keizai Shimbun mentions that structures made with our products are being used for the restoration of roads damaged by the Noto Peninsula earthquake, and that the construction period can be shortened by about two weeks, so please take a look.

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It was broadcast on NHK WORLD.

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The Noto reconstruction project by the Kashima, Yoshimitsu, and Noto region maintenance-type construction joint venture was featured on NHK WORLD, stating that it is being constructed using a 3D printer, and it was broadcast on November 14. It can be viewed in 150 countries around the world.

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We held a site tour.

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At the site of the "R6 Komatsu Yobama Construction," we held a site tour for four days starting from November 24. Visitors were able to observe the automation and remote operation of construction machinery. The event was also featured in the Construction Industry Newspaper and the Construction Communication Newspaper.

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It was awarded as an excellent construction project by Nomi City.

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On November 21, at the Nomi City Hall, our company was awarded for the "Yuno Children's Garden Development Project (Civil Engineering)" as an excellent construction project at the Nomi City Construction Project Awards Ceremony. For more details, please refer to the related link.

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吉光組

吉光組

General contractors and subcontractors

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We have been in the construction business for over 100 years, based in Ishikawa Prefecture.

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