Design Study of a Flexible-Membrane Tsunami Barrier Concept

The inundation height of the Tohoku tsunami of 2011 exceeded the design levels of many coastal barriers and several structures collapsed. Hundreds of seawalls and breakers are (planned to be) (re)built in the Tohoku district. There is much debate about the conventional tsunami walls and it is therefore suggested to consider alternative tsunami barrier. One of the latest innovations in the field o ftsunami barriers, is the so-called 'Tsunami Catcher'. This is a flexible-membrane barrier which is self-deploying when a tsunami occurs, due to the buoyancy of a floating element. The floater is connected to a membrane and cables which hold the floater on its position. During normal conditions, the membrane is folded in a trench-tpye structure and does not form a visual obstruction of the coastline. In this report, a feasibility assesment of the flexible-membrane barrier for the case study of Kamakura is completed.

Subject

Tsunami
Tsunami Catcher
Japan
Tohoku
Tsunami barrier
new concept

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35.3,139.54

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Student theses

Document type

master thesis

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FinalReport.pdf

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