Soft ground countermeasures are possible: Ground replacement method "Columbus+" factory case study.
Ground Replacement Method Columbus+
Powerful against weak ground! Strong against earthquakes, differential settlement, and traffic vibrations, and excellent for underfloor insulation.
【D.H.A. Marine Foods Co., Ltd.】―――――――――――― Shizuoka Prefecture, Shimizu City; Construction completed in February 2011; Steel structure, two stories, 667 m² / Adopted based on cost comparison with piles. ――――――――――――――――――――――――――――――――― The ground replacement method "Columbus+" provides dual effects of differential settlement countermeasures and seismic resistance, making it a method that is strong against earthquakes and liquefaction. It is recommended for ultra-soft ground, pile foundations, friction pile foundations, designated archaeological areas, underground obstacles, periodic land leases, vibration countermeasures, and earthquake measures. By removing the heavy soil beneath the foundation and placing lightweight EPS (expanded polystyrene) "Geoform" in its place, the weight of the building on the soft ground is reduced, thereby suppressing settlement. Furthermore, by balancing with the ground, it prevents differential settlement where the building tilts and sinks, 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" weakens "vibrations from traffic and machinery" and "reflects and absorbs seismic tremors," thereby reducing the impact transmitted to the foundation concrete, resulting in a halving of the vibrations experienced by the building. ○ Weaker ground tends to experience longer and larger seismic vibrations. ○ In the case of the ground replacement method [Columbus+], the measures for weak ground result in a double effect of preventing differential settlement and providing seismic isolation. ○ The insulation properties of the "Geofoam" installed under the entire foundation reduce heat loss to the crawl space, contributing to CO2 reduction through thermal storage heating in the foundation concrete. 【What is Geofoam?】 ○ It is expanded polystyrene (EPS) produced by the molding method using polystyrene beads. ○ 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 has been confirmed to be durable, with no issues related to 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 measures ○ Ground vibration reduction (earthquakes) ○ Traffic and factory vibration measures ○ Liquefaction measures ○ Energy-saving foundation insulation (frost heave prevention effect) ○ Archaeological site measures, etc. 【Achievements】 ○ Commercial facilities ○ Nursery schools and kindergartens ○ Public institutions ○ Medical and welfare facilities ○ Factories and offices ○ Multi-family housing, 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.