Session2: Ports, Coastal Engineering and Management
Title: PERFORMANCE OF GABION REVETMENTS FOR STABILIZING BEACH PROFILE
Ayumi Saruwatari, Masanori Kobayashi, Nobutaka Takasuka, Hirofumi Koyama, Mikio Takahashi, Yasunori Watanabe
Gabion revetments are often installed in front of beach scarps for short-term protection of the eroded beaches. Although the effect of a gabion revetment on direct sand protection is weaker than other impermeable costal structures, gabions induce natural recovery of a stable beach profile because of their permeability. This allows cross-shore sand transport while protecting the eroded beach if the gabions are installed at proper locations. The final goal of this research is to find out the optimum arrangement of beach-erosion countermeasures towards sustainable management of a beach profile. In this study, we will discuss the performance of round-shaped gabions as a material to form beach stabilization structures through laboratory experiments.