Tohoku Earthquake Investigation in Iwaki City, Fukushima Prefecture - Ground Replacement Method "Columbus+"
Ground Replacement Method Columbus+
The seismic performance was confirmed even for the earthquake of the Great East Japan Earthquake.
【Iiwaki Chubu Izumi Branch】―――――――――――――――――――――― Iiwaki City, Fukushima Prefecture; construction completed in December 2009; two-story steel structure; 399 m² / seismic intensity of 6 weak (main shock, two aftershocks) ――――――――――――――――――――――――――――――――― 【Staff Interview】 It was a strong tremor, but compared to ordinary houses, the shaking seemed to be less severe. The only issue was some wrinkling in the corner wallpaper. 〈Exterior Condition〉 The building was operating without any issues at the time of inspection. There were no cracks in the exterior walls or foundation. There was also no breakage in the glass openings. It was confirmed that there were no problems. 【Surrounding Area Check】 The surrounding roads had cracks, and nearby block walls had collapsed.
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basic information
For more details about the Columbus construction method, please contact us or download the catalog.
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Applications/Examples of results
【Applications】 ○ Different sinking countermeasures ○ Earthquake countermeasures (vibration reduction) ○ Traffic and factory machinery vibration countermeasures ○ Liquefaction countermeasures ○ Difficulties in bringing in large equipment in narrow spaces ○ Inability to drive piles due to underground obstacles ○ Avoiding troubles with buried objects like piles during and after the return of leased land ○ Energy-saving foundation insulation (frost heave prevention effect) ○ Avoiding excavation surveys in designated archaeological areas If you have any difficulties where other methods are hard to apply, please feel free to contact us. 【Track Record】 ○ General residences ○ Commercial facilities ○ Nursery schools and kindergartens ○ Public institutions ○ Medical and welfare facilities ○ Factories and offices ○ Apartment buildings, etc. A total of 4,000 cases nationwide (as of August 2020) For more details, please contact us.
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Company information
Our company specializes in the "Ground Replacement Method Columbus+" which is resistant to earthquakes, differential settlement, traffic vibrations, and liquefaction. We have offices and agents across the country, and our representatives will visit you to provide explanations. Estimates are also free, so please feel free to contact us.
![[Vibration Mitigation Case Study] Ground Replacement Method "Columbus+"](https://image.mono.ipros.com/public/product/image/f99/2000140800/IPROS17216333081782806922.jpeg?w=280&h=280)
![[Construction Case] Leisure Facility: Subfloor Settlement Correction Work (Ibaraki Prefecture)](https://image.mono.ipros.com/public/product/image/359/2001208819/IPROS11107164080756994288.png?w=280&h=280)
