This is a construction method to prevent the rupture of underground buried lifelines due to liquefaction phenomena.
This is a groundbreaking construction method using blocks made of expanded polystyrene (EPS) that addresses all aspects of protection, workability, and cost.
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basic information
This construction method improves workability, reduces costs, and prevents sinking due to liquefaction by enclosing underground installations (pipes and utility tunnels) within a structure made of expanded polystyrene. Even if differential settlement occurs due to liquefaction, it is possible to maintain the ground surface prior to the earthquake, thereby preventing damage to the buried installations. (Principle) Even when the buried pipes and the expanded polystyrene structure are combined, their overall specific gravity is lighter than that of the liquefied muddy water, causing them to attempt to float on the liquid soil. However, the weight of the asphalt or concrete on the surface acts as a counterbalance, preventing excessive buoyancy and thus maintaining the status quo.
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Applications/Examples of results
It can accommodate everything buried underground, such as residential buildings, structures, and roads.
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Company information
Our company, established in 1951, is the first molding manufacturer in Japan to introduce expanded polystyrene products to the market. Not only do we have the know-how from our past achievements, but we also have sales engineers who can handle 3D CAD, allowing us to assist in design and proposals. This enables us to tackle challenging projects that are typically difficult to produce and help bring our customers' ideas to life. "We are confident in our speed, proposal capabilities, and development strength!"
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