Narrow Land Solutions: Ground Replacement Method "Columbus+"
Ground Replacement Method Columbus+
【Narrow Site Solutions】Can accommodate even in narrow sites where the entry of pile drivers and ground improvement machines is difficult!
【(Foundation) Better Living's experiment has demonstrated the effectiveness of vibration reduction】 【The Hokkaido Institute of Northern Architecture has verified and evaluated the insulation and frost prevention effects】 【Patent construction method】 The ground replacement method "Columbus+" removes heavy soil beneath the foundation and replaces it with lightweight and compression-resistant "Geofoam," reducing the weight of buildings on soft ground and minimizing settlement. Additionally, in urban areas where land is limited, it can be difficult to bring in large equipment such as pile drivers and ground improvement machines. The Columbus+ method does not require large machinery. ○ Geofoam that has been pre-cut according to construction drawings is easy to install. ○ We guarantee protection against damage to foundations and buildings due to differential settlement for 10 years, up to a maximum of 50 million yen. ○ A track record of 4,000 projects nationwide, from public properties to private homes (as of August 2020). ○ We are expanding offices and agents nationwide. Local representatives will visit to provide explanations. ○ Estimates are free of charge. ○ For more details, please contact us or download the catalog.
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basic information
What is the measure for narrow land? "Narrow land" generally refers to small plots of land, typically under 20 tsubo (or 15 tsubo). This is often the case in urban areas where the land is surrounded by houses on three sides or where houses are densely packed, resulting in narrow access routes. Therefore, when ground improvement is necessary due to weak soil, conventional ground improvement methods that use large machinery cannot be employed. The Columbus + method can be applied if a small excavator can access the site to remove soil. The materials used, such as the geofoam raw material, measure 1m x 2m x 0.5m thick, allowing for transport through routes accessible by a small excavator. Scope and Conditions: - Building weight: 6t/m2 or less (suitable for wooden, steel frame, or reinforced concrete structures up to 3 or 4 stories) - Must have a flat foundation. - Can accommodate an N value of 0.
Price information
The estimate is free. Please contact us.
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Applications/Examples of results
【Applications】 ○ Different sinking countermeasures ○ Earthquake countermeasures (vibration reduction) ○ Traffic and factory machinery vibration countermeasures ○ Liquefaction countermeasures ○ When it is difficult to bring in large equipment in narrow spaces ○ When piles cannot be driven due to underground obstacles ○ When wanting to avoid troubles with buried objects like piles at the time of return or after return in a leasehold ○ Energy-saving foundation insulation (frost heave prevention effect) ○ When wanting to avoid 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. 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.