Reduction of seismic forces and prevention of liquefaction! Constraining the soil inside the cell to suppress ground deformation and reduce seismic motion.
The "WIB Method for Liquefaction Countermeasures" protects buildings from damage caused by earthquakes and liquefaction. The basic structure consists of replacement soil that acts as a seismic isolation layer, ground improvement piles that function as a damping layer, and support ground improvement piles that support the building foundation. The ground improvement piles in the damping layer are constructed in a cellular shape, creating a strong and stable composite ground (non-liquefied layer). Additionally, by increasing resistance through the combined use of pile foundations and the WIB method, it is possible to reduce the number of piles or lower the grade of the piles, thereby rationalizing the design and leading to cost reductions. 【Features】 ■ Ground improvement piles in the damping layer are constructed in a cellular shape ■ Creates a strong and stable composite ground (non-liquefied layer) ■ During an earthquake, the cellular ground improvement piles restrain the soil inside the cells ■ Suppresses ground deformation and reduces seismic motion ■ Since liquefaction does not occur inside the cells, it blocks the propagation of liquefied mud water below, preventing surface liquefaction *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
【Design Methods】 ■Simplified Design Method - Perform liquefaction assessment of the existing ground based on ground data. ■Detailed Design Method - In addition to liquefaction assessment, conduct seismic analysis using computer simulations. *For more details, please refer to the PDF materials or feel free to contact us.
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【Purpose】 ■ Liquefaction countermeasures *For more details, please refer to the PDF document or feel free to contact us.
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Company information
E&D Tech Design Co., Ltd. is a company that theoretically creates stable ground that is resistant to shaking and less prone to liquefaction by using its advanced proprietary technology known as the "WIB method." Focusing on vibration control, vibration reduction, and soundproofing against low-frequency vibrations from transportation, construction work, and factories, as well as seismic resistance and isolation against earthquakes, we conduct measurement surveys, simulation analyses, and design and construction of countermeasure methods. We aim to protect a comfortable environment through ground design and assist in creating happiness.