Seismic reinforcement measures: Maintenance-free and reliable manhole VD method.
By non-excavation, we will achieve seismic reinforcement measures for existing manholes.
The construction method suppresses the uplift of manholes through two functions: ground improvement by vibration and the drainage function for excess pore water pressure relief. Without drawing in groundwater or soil, it is possible to drill from inside the manhole to the bottom of the manhole and install a filter. By vibrating the manhole body and compacting the surrounding ground, ground improvement is achieved, and even if excess pore water pressure occurs due to aftershocks, it is maintenance-free, providing peace of mind. 【Features】 ■ No excavation ■ Maintenance-free ■ Responds to aftershocks *For more details, please refer to the PDF materials or feel free to contact us.
basic information
【Construction Procedure】 1. Positioning 2. Inverted drilling (drilling 8 inches) 3. Sleeve pipe fixation 4. Base plate drilling (drilling 5 inches) 5. Filter installation 6. Sleeve pipe removal fixation 7. Guidance pipe installation 8. Vibration work 9. Gap filling work *For more details, please refer to the PDF document or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
For more details, please refer to the PDF document or feel free to contact us.
Related Videos
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[Sample Giveaway] The incandescent bulb itself. Delivery of the new filament LED lamp product page by Tōzai Electric Industry.
Due to popular demand, we are currently offering free samples of filament LED bulbs! Just like incandescent bulbs! We minimize flicker to the extreme, creating a comfortable space without any flickering sensation. With a rich lineup and dimmable options, they are perfect for various scenes! The retro shape and warm glow of incandescent bulbs are preserved, and they are well-received as LED lighting that fits modern times, TOZAI's filament LED lamps. This time, we have prepared clear and white glass colors for both 'general bulb shape' and 'ball shape.' Additionally, the ever-popular Edison shape (glass color: amber) has been added, further enriching our lineup. The new models allow for smooth dimming with minimized flicker and come in a wide range of wattages from equivalent to 25W to 60W, so you can find lamps with the right brightness for your scene, even in environments without dimmers.
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[Sample Distribution] The incandescent bulb itself. Delivery of the new filament LED lamp product page by Tōzai Electric Industry.
Due to popular demand, we are currently offering free samples of filament LED bulbs! Just like incandescent bulbs! We minimize flicker to the extreme, creating a comfortable space without any flickering. With a rich lineup and dimmable options, they are perfect for various scenes! The filament LED lamps from (TOZAI) maintain the retro shape and warm glow of incandescent bulbs while being well-received as modern LED lighting. This time, we have prepared clear and white glass colors for both 'general bulb shape' and 'ball shape.' Additionally, the ever-popular Edison shape (glass color: amber) has been added, further enriching our lineup. The new products allow for smooth dimming with minimized flicker and come in a wide range of wattages from equivalent to 25W to 60W, so you can find lamps with the brightness suited to your scene, even in environments without dimmers.
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[Sample Distribution] The incandescent bulb itself. Delivery of the new filament LED lamp product page by Tōzai Electric Industry.
Due to popular demand, we are currently offering free samples of filament LED! Just like incandescent bulbs! It minimizes flicker to the extreme, creating a comfortable space without any flickering. With a rich lineup and dimmable options, it excels in various scenes! The filament LED lamps from (TOZAI) maintain the retro shape and warm glow of incandescent bulbs while being well-received as modern LED lighting. This time, we have prepared clear and white glass colors for both 'general bulb shape' and 'ball shape.' Additionally, the ever-popular Edison shape (glass color: amber) has been added, further enriching our lineup. The new models allow for smooth dimming with minimized flicker and are available in a wide range of wattages from equivalent to 25W to 60W, so you can find a lamp with the brightness suited to your scene, even in environments without dimmers.
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We have released a catalog featuring 24 types of the new TOZAI filament LED lamps! Tozai Electric Industry.
We are currently offering free samples of this filament LED lamp!
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Sample giveaway! "Full Color RGB Tape Light" Tozai Electric Industry Co., Ltd.
Sample giveaway! The product page for the professional-grade 'Full Color RGB Tape Light' is available here: ↓ ↓ https://kensetsu.ipros.jp/product/detail/2000745209
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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.
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.
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.
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.
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.
Distributors
We have been in the construction business for over 100 years, based in Ishikawa Prefecture.























