Earthquake, Tsunami, and Storm Surge Measures: Upright Floating Breakwater

During the arrival of tsunamis and high waves, the upper steel pipes can float within a few minutes! It is expected to be utilized as a new disaster prevention technology.

The "upright floating breakwater" is a new type of breakwater that quickly rises from the seabed during a tsunami or high waves to protect people and ports from disasters. During normal times, it is stored on the seabed, so it does not obstruct the passage of vessels or the flow of seawater. The Chubu Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, the Port and Airport Research Institute, and a private group including our company collaborated on the technical development. Through large-scale hydraulic model experiments and verification of technology in real sea area demonstration experiments, trial construction began in the Kainan area of Kushimoto Port, Wakayama Prefecture in fiscal year 2011, with the main construction starting in fiscal year 2012 and completion in fiscal year 2014. [Mechanism of the Breakwater] - During normal times, a smaller upper steel pipe is stored inside a lower steel pipe installed on the seabed. - When a tsunami or high waves approach, the upper steel pipe rises within a few minutes to become the breakwater. *For more details, please refer to the PDF materials or feel free to contact us.

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