Study on shoreline protection of artificial reef with square diagonal plates
NI Zhennan
SHI Bing
GAO Feng
Abstract：Based on the simple frame reef,a square diagonal plate separated reef was improved in this paper.In order to study its beach protection effect,the flow blocking effect,flow field effect and local scour condition were analyzed by the combination of physical test and numerical simulation.The exper-imental results showed that the new reef had different blocking effects under different upstream angles,and the angle arrangement of 0 upstream was obviously better than that of 45.At a distance of the length of reef from the center of the reef,upwelling began to appear.The ratio of maximum rising ve-locity to incoming velocity hardly changed with the change of incoming velocity.In a certain range,the smaller the opening of the reef,the better the flow blocking effect;the more obvious the internal vor-tex,the more obvious the water exchange between different layers,and the richer the flow field.The flow and sediment movement around the reef was complex,and the dynamic scouring equilibrium was reached about 2 h when the inflow velocity was controlled at 0.35 m/s.Therefore,when launching this type of reef,the opening size should be reduced as much as possible and the 0°upstream layout should be selected as much as possible,so as to achieve the best effect.
Keywords：artificial reefshoreline protectionphysical testnumerical simulation
Publication Date：2025-02-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 8-15 )