河川砂防論文

【論文】足羽川水面利用施設の土砂堆積軽減に関する研究

足羽川水面利用施設の土砂堆積軽減に関する研究
A STUDY ON REDUCTION OF SEDIMENTATION AT THE WATER SURFACES UTILIZATION FACILITY IN ASUWA RIVER

田安正茂1・流 守博2・田中謙次3・田邊祐真4・廣部英一5
Masashige TAYASU, Morihiro NAGARE, Kenji TANAKA, Yuma TANABE and Eiichi HIROBE

1正会員 博士(工学) 福井工業高等専門学校准教授(〒916-8507 福井県鯖江市下司町)
2非会員 修士(工学) 福井県建設技術研究センター主任研究員(〒918-8108 福井県福井市春日3-303)
3非会員 (株)田中地質コンサルタント(〒915-0082 福井県越前市国高2-324-7)
4非会員 敦賀市建設水道部道路河川課(〒914-8501 福井県敦賀市中央町2-1-1)
5正会員 博士(工学) 福井工業高等専門学校名誉教授(〒916-8507 福井県鯖江市下司町)

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.
Key Words : Water surface utilization facility, Reduction of the sediment deposition, PIV analysis Hydraulic model test

 

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