TWO-DIMENSIONAL PHYSICAL MODELING OF MULTI CHAMBER SKIRT BREAKWATER (MCSB)

Abstract

Multi-Chamber Skirt Breakwater (MCSB) is a skirt-type breakwater consisting of piles at the lower part, and two chambers skirt with porosity in the upper part of the structure. The additional number of chambers with variations of chambers gap length is expected to increase the breakwater's effectiveness.  Physical modeling is conducted to examine the transmission coefficient (C_T) and the reflection coefficient (C_R). The relationship between environmental and structure independent variables with the transmission and reflection coefficient is investigated. The physical modeling concluded that the structure's transmission coefficient in the deep water is less than 0.31, while the intermediate-depth water condition is 0.31-0.72. The reflection coefficient is 0.36-0.51 for deep waterand less than 0.5 for the intermediate depth water condition. It is concluded that MCSB is effective in intermediate-depth and deep water conditions where the range of the depth parameter (kh) is between 2.5 to 3.1.