Abstract
Coastal sand transport often causes sand deposit on channels and basins at nearby ports and harbors, and hinders smooth fishery activities. This problem also occurs at Takasu Fishery Port (Fukui Prefecture, Japan), which locates at inner part of a bay. Therefore, it is necessary to investigate effective maintenance management method for the channels and basins of Takasu Fishery Port.
In this study, calibrated a numerical simulation model of sand transport and deposit, which can take account of sand transport driven by long-period waves, and simulated a mechanism of sand deposit on channels and basins of the port. Secondly, we estimated amount of sand deposit during life cycles of the facilities for each method. Finally, calculated life cycle cost for each method by adding up expense of additional facilities and cost for dredging, and suggested most effective maintenance management method to sustain functionality of the channels and basins.
