1Assistant Manager, Technical Research Institute, Marine Total Solution 2Associate Professor, Department of Civil Engineering, School of Smart and Green Technology, Changwon National University
Received: March 6, 2025; Revised: April 25, 2025. Accepted: April 25, 2025.
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ABSTRACT
In this paper, a revised method has been proposed to calculate the horizontal pressure acting on the front wall of a caisson when it is covered by armor blocks on the rubble mound. The original method of estimating the wave pressure on this type of structure was presented by Oh and Lee (2020). In their study, the coverage ratio (CR) was defined for the entire height of the caisson. However, the front wall of the caisson is likely to be completely covered or partially exposed over at its upper part. Consequently, the original method can only be applied within a relatively narrow range of the coverage ratio. Recognizing this limitation, the coverage ratio has been newly defined over the range from the still water level to the crest height of the caisson. Then, a revised method of estimating the horizontal pressure is proposed based on this modification. It is expected that this revised method can be more practically used when designing horizontally composite breakwaters that are protected by armor blocks on the rubble mound.
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