2016 Volume 22 Pages 481-486
Riverside concavity zones have been installed as the water surface utilization facilities in the Asuwa River which flows through Fukui city, Fukui Prefecture. By means of the facilities, we can take the water for fire extinguishing in case of large-scale disaster and we can use the calm water surface for boat landing. Some of the facilities, however, have already lost their function because of sediment deposition and vegetation covers.
In this study, field survey and hydraulic model test have been carried out to determine the shape and placement of the training structure to reduce the sediment deposition in the facilities. Results of PIV analysis show that it is possible to transport the sediment in the facilities by the installation of the training structure.
