Ground replacement method - List of Manufacturers, Suppliers, Companies and Products

Ground replacement method Product List

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Tohoku Earthquake Investigation in Iwaki City, Fukushima Prefecture - Ground Replacement Method "Columbus+"

Tohoku Earthquake Investigation in Iwaki City, Fukushima Prefecture - 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.

  • Ground foundation construction method

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Ground Replacement Method "Light Drain Columbus"

Ground Replacement Method "Light Drain Columbus"

Introducing ground improvement that replaces weak ground and narrow sites with lightweight ground materials!

"Light Drain Columbus" is a ground replacement method that was born from a shift in thinking to replace the surface ground with lightweight materials, thereby reducing the burden on the ground. Please consider this method in cases where the depth of the soft layer is deep, making piling costs excessively high, or in "soft ground" where cement-based improvements are difficult, as well as in "narrow sites" where the entry of large machinery such as pile drivers is challenging. 【Consider this method in the following situations (partial list)】 ■ Soft ground ■ Transition from pile foundations to direct foundations ■ Liquefaction ■ Archaeological designated areas ■ Earthquakes *For more details, please refer to the PDF materials or feel free to contact us.

  • Ground improvement
  • Ground foundation construction method
  • Earthquake-resistant construction method

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Ground Replacement Method "Light Drain Columbus Method"

Ground Replacement Method "Light Drain Columbus Method"

To ensure that buildings continue to stand safely for a long time! Protecting buildings from the ground during frequent earthquakes.

The "Light Drain Columbus Method" uses EPS in a shape developed by our company, laid under the foundation and floor slab. By placing a thick layer of EPS (air layer) between the foundation concrete and the ground, it cuts off the edges and reduces vibrations (horizontal and vertical) from the ground. This prevents resonance in vibrating buildings and minimizes the energy of the vibrations. Additionally, during disasters or prolonged power outages without heating or cooling, it effectively utilizes natural energy, allowing for comfortable living without strain. 【Features】 ■ Utilizes natural energy ■ Enhances the durability of the foundation (floor slab) ■ Protects buildings from the ground during frequent earthquakes ■ Minimal temperature difference between the underfloor and indoor spaces ■ Allows for integrated use of underfloor and indoor spaces *For more details, please refer to the PDF materials or feel free to contact us.

  • Ground foundation construction method
  • Heat insulation and heat shielding methods
  • Earthquake-resistant construction method

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Ground Replacement Method "Columbus(R)"

Ground Replacement Method "Columbus(R)"

For weak ground and vibration/seismic measures! An evolved form of ground improvement that protects lives and assets.

The ground replacement method "Columbus(R)" is a technique that is resistant to differential settlement, earthquakes, and liquefaction. By removing the soil beneath the foundation of buildings constructed on weak ground and laying down EPS (expanded polystyrene) "geofoam," the balance between the ground and the building load is adjusted, protecting the building from differential settlement and vibrations. Recent earthquakes have demonstrated that this method is effective not only against differential settlement and vibrations but also against earthquakes and liquefaction, attracting further attention. 【Features】 ■ A simple concept of "replacing" the ground ■ A method made possible by the lightweight and strong "geofoam" ■ Effective not only against differential settlement but also against earthquakes and liquefaction ■ Designed with consideration for load distribution and ground balance *For more details, please download the PDF or contact us.

  • Ground foundation construction method

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