Tohoku Earthquake Investigation in Iwaki City, Fukushima Prefecture - Ground Replacement Method "Columbus+"
Ground Replacement Method Columbus+
The seismic performance was confirmed in response to the Great East Japan Earthquake.
【Iiwaki Chubu Izumi Branch】―――――――――――――――――――――― Iiwaki City, Fukushima Prefecture; Construction completed in December 2009; Steel frame, two-story building; 399 m² / Seismic intensity 6 weak (main shock, two aftershocks) ――――――――――――――――――――――――――――――――― 【Staff Interview】 It was a strong tremor, but compared to ordinary residential buildings, 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 the survey. There were no cracks in the exterior walls or foundation. There was also no glass breakage in the 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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For more details about the Columbus construction method, please contact us or download the catalog.
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Applications/Examples of results
【Uses】 ○ Different sinking countermeasures ○ Earthquake countermeasures (vibration reduction) ○ Traffic and factory machinery vibration countermeasures ○ Liquefaction countermeasures ○ Cases where it is difficult to bring in large equipment in narrow spaces ○ Cases where piles cannot be driven due to underground obstacles ○ Cases where one wants to avoid troubles with buried objects such as piles during or after the return of leased land ○ Energy-saving foundation insulation (frost heave prevention effect) ○ Cases where one wants to avoid excavation surveys in designated archaeological areas If you have any difficulties where other methods are hard to apply, please 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.