Planar Installation Characteristics of Crown Depth-Variable Artificial Coral Reef on Improving Coastal Resilience: A 3D Large-Scale Experiment

Coastal resilience has received significant attention for managing beach erosion issues. We introduced flexible artificial coral reef (ACR) structures to diminish coastal erosion, but planar installation effects should be considered evaluate the feasibility of coastline maintenance. In this study, we conducted a three-dimensional large-scale experiment investigate characteristics ACR, focusing on wave mitigation performance, profile deformation with delay, nearshore current movement, deposition and trends, variation. found that ACR diminished height by ~50% intensity ~60% compared conventional submerged breakwater made dolos units. Using dispersion velocity dye in tracer experiment, time was approximately 1.67-times longer than reduced, revealing significantly reduced structural erosion. With dolos, severe >10 cm occurred behind structure, whereas there only slight ACR. Moreover, vertical beach-profile analysis, exhibited greater shoreline accretion dolos. These results indicate potential improving resilience.