2019 Volume 75 Issue 2 Pages I_931-I_936
In Nangoku construction section of Kochi coast, the existing artificial reef is planned to be turn into offshore breakwater by installing wave dissipating blocks on the reef, extremely rare structure, in order to increase control function of littoral transport. In this study, hydraulic model experiments were conducted to evaluate the stability of the facility for the purpose of determining the basic profile, such as weight and location of the wave dissipating blocks, which is necessary for the design of the facility.From these results, behaviour of wave around the offshore breakwater and the failure mechanism of the offshore breakwater were clarified under the condition of terrain of Nangoku construction section of Kochi coast and the design wave. Furthermore, it was clarified that the stability of the facility is secured most economically by installing the wave dissipating block on the shore-side part of the crown of the artificial reef. Based on the above results, basic profile of the facility, including the reinforcement of the landward slope of the existing artificial reef, was determined.
PROCEEDINGS OF COASTAL ENGINEERING, JSCE
PROCEEDINGS OF THE JAPANESE CONFERENCE ON COASTAL ENGINEERING
