A UNIVERSAL ANALYSIS FOR THE STABILITY OF BOTH LOWCRESTED AND SUBMERGED BREAKWATERS

[摘要] Three-dimensional physical models of detached rubblemound breakwaters have been built with separate Total Section, Front Slope, Crest and Back Slope sections. The stability responses of the armor units of this sections have been tested using irregular waves and differents freeboards. The stability curves relating the level of damage, the stability number, Ns, and the freeboard, have been obtained for each one of the different sections defined on the breakwaters. A distinct behaviour of the different sections have been found. The curves that plot the stability number against the freeboard for a given level of damage shows a minimun for a intermediate freeboard for the Crest and Back Slope sections. The total section stability response is a combination of the response of each one of its components. As a consequence, relative minimums of stability may appear for intermediate freeboards, due mainly to the contribution of the Crest failure to the total stability.

[学科分类] 建筑学

[关键词] breakwater;submerged breakwater;breakwater stability