NUMERICAL SIMULATION AND FIELD EXPERIMENT ON BEACH NOURISHMENT USING COARSE MATERIALS
A numerical simulation using the contour-line-change model was carried out to predict the movement of fine and coarse materials with different equilibrium slopes used for beach nourishment. Coarse materials were stable, accumulating near the shoreline with negligible offshore discharge, whereas fine materials, such as those with a grain size of 0.1 mm, were easily washed away. Based on these results, a field experiment on the stabilization of a sandy beach using 7,000 m 3 of gravel of grain size ranging between 2 and 13 mm was carried out at the Jinkoji coast facing the Pacific Ocean. It was found that the nourished gravel remained near the shoreline, protecting the foot of the seawall. Thus, the effectiveness of beach nourishment using gravel was confirmed.
Takayuki Kumada Takaaki Uda Masumi Serizawa Hideo Ishii Tomokazu Nakamura Yasuhiro Oki
Laboratory of Aquatic Science Consultant Co., Ltd., Meishin Building, 1-14-1 Kami-ikedai, Ota,Tokyo Executive Director, Public Works Research Center, 1-6-4 Taito, Taito, Tokyo 110-0016, Japan Coastal Engineering Laboratory Co., Ltd., 1-22-301 Wakaba, Shinjuku, Tokyo 160-0011, Japan Itako Public Works Office, Ibaraki Prefectural Government, 1086-1 Itako, Itako, Ibaraki 311-2424, Ja Laboratory of Aquatic Science Consultant Co., Ltd., Meishin Building, 1-14-1 Kami-ikedai, Ota, Tokyo
国际会议
第四届亚太地区海岸会议(the Fourth International Conference on Asian and Pacific Coasts)
南京
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）