STABILITY OF ARMOR STONES OF A SUBMERGED WIDE-CROWN BREAKWATER

Norimi Mizutani, Teofilo Monge Rufin, Koichiro Iwata

Abstract


The stable weight of armor rubbles of a submerged wide-crown breakwater was analyzed in relation to the wave force acting. At first, stability models for armor rubble were derived based on the idealized spherical armor unit; then, the shape effect of armor stones on acting wave forces and stability was investigated experimentally. Based on the results, the proper modification of the stability models for spherical armor unit gives good estimate of the stable weight of armor rubbles. Furthermore, the shape effect on wave forces and stability is significant; whereas, the shape effect of armor rubble on the stable weight is relatively small.

Keywords


breakwater; wide-crown breakwater; armor; armor stability; submerged breakwater

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