International Journal of Economy, Energy and Environment
Volume 3, Issue 5, October 2018, Pages: 51-57
Received: Dec. 26, 2018;
Published: Dec. 27, 2018
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Xiang Chen, Environment and Life Engineering, Graduate School of Engineering, Maebashi Institute of Technology, Maebashi, Japan
Ryuichi Hirakawa, Department of Civil and Environment Engineering, Maebashi Institute of Technology, Maebashi, Japan
Terunori Ohmoto, Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto, Japan
In the Shirakawa River, remarkable deformation due to sediment deposition was observed after the river channel improvement work. The sediment deposition was observed at the bend of the river channel. In this research, a model experiment, a quasi-three-dimensional numerical simulation and planer two-dimensional bed variation analysis were conducted in order to evaluate the effect of river bend curvature variation caused by improvement works on channel response and flow capacity. In the model experiment, large sandbars were formed, and the channel become narrower. In the numerical simulation, flood flew over sandbars and gravel deposited on sandbars, which caused decreasing of flow capacity. The gravel deposition was most active when the flow charge was in its peak. There was less inundation at the areas where sediment deposition was occurred.
Flood Capacity of Shirakawa River at Tatsudajinnnai Area in Kumamoto Prefecture, International Journal of Economy, Energy and Environment.
Vol. 3, No. 5,
2018, pp. 51-57.
A. Suzuki, M. Fukushima, Y. Yamamoto, and Y. Suwa, “Research on case study about revetment of small and medium-sized river which frequently affected by disaster,” Advances in River Engineering, Vol. 23, pp. 151-154, 2017.
Ministry of Land, Infrastructure and Transport Kyushu Regional Development Bureau Kumamoto Office, “Shirakawa water system river maintenance plan”, 2013.
Civil Engineering Association Kyushu Northern Heavy Rain Disaster Investigation Team, “July 2012 Kyushu Northern Heavy Rain Disaster Civil Engineering Study Team Report”, 2013.
H. Yamamoto, T. Yamasaki, M. Yamamoto and h. Kobayashi, “Characteristics of heavy rainfall and flood disaster in kumamoto prefecture on July 12, 2012”, Jounal of Janpan Society for Natural Disaster Science, Vol. 33, No. 2, pp. 83-100, 2014.
S. Sugio, K. Watanabe, “Research on the change of topographical features and vegetated region on floodplain in river”, Annual journal of Hydraulic Engineering, Vol. 48, pp. 985-990, 2004.
S. Sugio, K. Watanabe, “Analysis on the CHANGE OF VEGETATION LUXURIANCE SITUATIONS on honmura floodplain in the kita river”, Annual journal of Hydraulic Engineering, Vol. 49, pp. 1435-1440, 2005.
S. Sugio, K. Watanabe, Y. Ogawa, S. Morokawa, and R. Hirakawa, “On the change of wegetation on kawasaka floodplain in the kita river”, Advances in River Engineering, Vol. 13, pp. 195-200, 2007.
R. Hirakawa, K. Watanaba and T. Kominnami, “Instruction between Topographic Changes and Herbaceous Vegetation of Sand Bar”, Journal of applied mechanics, Vol. 68, No. 2, pp. 617-624, 2012.
T. Uchida, S. Fukuoka, “Borrom velocity compution method by depth intergarted model without shallow water assumption”, Annual journal of Hydraulic Engineering, Vol. 68, No. 4, pp. 1225-1230, 2012.
T. Uchida, S. Fukuoka, “A new calcution method for local three-dimensional flows by using the non-hydrostatic depth integrated model (BVC method) with dynamic wall-law for rough bed, Annual journal of Hydraulic Engineering, Vol. 71, No. 2, pp. 43-62, 2015.
S. Kato, S. Fukuoka, and T. Uchida, “Three-dimensional flows against bank protection works and forces on river banks in the jyoganji river filed experiment”, Advances in River Engineering, Vol. 23, pp. 155-160, 2017.
H. Sakamoto, M. Shige-eda, J. Akiyama, M. Shiga, T. Ono, M. Aratake, S. Murakoshi, S. Hirao, T. Iwasa, and Y. Tada, “Examination of appropriate countermeasuges at the bifurcation point of the gokasa river based on hydraulic model experiment and quasi 2-d flood flow analysis” Advances in River Engineering, Vol. 23, pp. 465-470, 2017.
Meyer-Peter and Müller R. “Formulas for bed load transport”, Proc. 2nd Congress of IAHR, Stockholm, 1948.