Laboratory Study on Destruction Mechanisms of Coastal Dyke due to Overflowing Tsunami
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概要
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Laboratory experiments on the collapse of coastal dykes due to overflowing tsunami were performed in a wave channel. In addition to the destruction caused by local scour, two mechanisms were found to be essential. One is the compression of air layer inside the dyke due to the transmission of water pressure suddenly increased by the incident tsunami at the seaside toe of the dyke. The air compression results in the increase in buoyancy force of the structure. The other is the lift force exerted at the top of the landside slope generated by the centrifugal force due to the convex streamline of the overflowing tsunami. Effectiveness of countermeasures against the destruction was also examined in the experiments.
- Japan Society of Civil Engineersの論文
Japan Society of Civil Engineers | 論文
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