Nghiên cứu xây dựng công thức bán thực nghiệm tính toán hệ số truyền sóng qua đê ngầm cọc có cấu tạo phức hợp

Abstract

This article proposes semi-empirical equations to estimate wave transmission coefficient through submerged complex with solid piles breakwater base on theories of energy conservation of perpendicular wave transmission incorporate with physical hydraulic experiments in wave flume apply on both types of submerged breakwater with and without piles. These equations are able to describe interactions and energy dissipation process for each element of this complex structure which are foundation block and pile rows. Energy dissipation process depends on three major factors which are [relative submerge depth (R_c/H_m0), relative crest width (B/H_m0), wave slope at construction location (s_m =H_m0/L_m)] and wave energy dissipation process through piles rows is determined by two major factors [relative submerge depth or submerge length of piles (R_c/H_m0)  and relative pile rows width (X_b/L_m)].

Keywords: semi-empirical equation, submerged complex with solid piles breakwater, permeable breakwater, piles wave dissipation, wave transmission coefficient, physical model, wave energy, definition factor.