Ground improvement measures are possible with the ground replacement method "Columbus+" / Commercial facility case study.
Ground Replacement Method Columbus+
Powerful against weak ground! Strong against earthquakes, differential settlement, and traffic vibrations, and also excellent for underfloor insulation.
【Example of au Shop Minto-ya】―――――――――――――――――――― Unnan City, Shimane Prefecture; Construction in February 2012; Steel frame, one-story building; 300m2 / 30-year lease. In the case of piles, removal by extraction is a condition. Adopted to reduce removal costs. ――――――――――――――――――――――――――――――――― The ground replacement method "Columbus+" provides double benefits of differential settlement countermeasures and seismic resistance, making it effective against earthquakes and liquefaction. It is recommended for ultra-soft ground, pile foundations, friction pile foundations, designated archaeological areas, underground obstacles, periodic leases, vibration countermeasures, and earthquake countermeasures. By removing the heavy soil beneath the foundation and replacing it with lightweight EPS (expanded polystyrene) "Geoform," the weight of the building on the soft ground is reduced, thus minimizing settlement. Furthermore, it balances with the ground to prevent differential settlement, ensuring safety even on ultra-soft ground with deep support layers. For more details, please contact us or download the catalog.
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basic information
【Features】 ○ The cushioning material, "Geofoam," "reduces vibrations from traffic and machinery," and "reflects and absorbs seismic tremors," thereby weakening the impact transmitted to the foundation concrete, resulting in a reduction of vibrations felt in the building by half. ○ The weaker the ground, the longer and larger the seismic tremors become. ○ In the case of the ground replacement method [Columbus+], as a result of measures against weak ground, a double effect of differential settlement countermeasures and seismic isolation is achieved. ○ The insulation properties of the "Geofoam" installed under the entire foundation reduce heat loss to the underfloor, contributing to CO2 reduction through heat storage heating systems that store heat in the foundation concrete. 【What is Geofoam?】 ○ It is expanded polystyrene (EPS) manufactured using the bead foaming method. ○ EPS was first used in ground applications in 1972 with the development of the "EPS Civil Engineering Method" in Norway. ○ In Japan, it was introduced in 1986, and it has been confirmed to be durable without issues such as corrosion from microorganisms in the soil or damage from termites. ● For more details, please contact us or download the catalog.
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Applications/Examples of results
【Applications】 ○ Different subsidence countermeasures ○ Ground vibration reduction (earthquakes) ○ Traffic and factory vibration countermeasures ○ Liquefaction countermeasures ○ Energy-saving foundation insulation (frost prevention effect) ○ Archaeological site countermeasures, etc. 【Achievements】 ○ Commercial facilities ○ Nursery schools and kindergartens ○ Public institutions ○ Medical and welfare facilities ○ Factories and offices ○ Apartment complexes, etc. 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.
