Experimental Research and Failure Mechanism Detection on Temporary Flood Barrier

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Abstract

In July 2021, an extraordinary precipitation led to severe flooding across Europe, particularly affecting South Limburg in the Netherlands, causing significant damage. In response, the Dutch government is seeking methods and new ways to mitigate the effects of future flash floods. Consequently, Waterschap Limburg (Limburg Water Board) initiated a physical experiment in Roermond in May 2023 to assess the effectiveness of movable flood protection barriers under various conditions. TU Delft, Flood Proof Holland, and AccessHub B.V. were involved in establishing a monitoring system that evaluated the stability and performance of these temporary flood barriers.

Although the experiment yielded success and Waterschap Limburg profitably selected appropriate temporary flood barriers to address flooding for the 2023-2024 festive season from Storm Pia, there remain knowledge gaps concerning these barriers. Limited documentation has left some aspects unclear, such as the fundamental physical processes and mechanisms of failure detection. This study aims to provide a thorough understanding of how to monitor physical changes through image processing and identify failure mechanisms by applying the horizontal stability equation.