Author(s): Reza Arefi; Ioan Nistor; Abdolmajid Mohammadian
Linked Author(s): Majid Mohammadian, Ioan Nistor
Keywords: Tsunami bore; Tsunami countermeasures; Water-filled canal; Force-on-column; Experimental analysis
Abstract: Following the 2004 Indian Ocean Tsunami and the 2011 Tohoku Tsunami, which extensively devastated coastal infrastructure in communities impacted, research into tsunami-induced forces on structures has intensified. Several studies have explored mitigation strategies to reduce tsunami energy and minimize destruction. Field investigations revealed that water-filled canals can reduce tsunami bore energy, though limited studies exist on their effectiveness as a mitigation solution. This study experimentally evaluates the effects of rectangular water-filled canals on reducing tsunami forces exerted on a column. The tsunami bore was generated by means of the dam-break method and the resulting bore flew over a dry bed, crossed the canal, and then impacted the column. During these tests, the time histories of bore height and horizontal force exerted onto the column were measured. Results show that the presence of canals can reduce bore front velocity and associated horizontal force exerted on the column by over 25%.
Year: 2024