掲載雑誌(和): 河川技術論文集
Vol: 20
年: 2014
頁: 283-288
著者(和): 永井智幸,原田守啓,林 博徳,高橋邦治
タイトル(和): 樋井川における河道安定と瀬淵構造の保全創出の取り組み
抄録(和):
キーワード(和): 河床の構造形態と瀬淵の保全
掲載雑誌(英): Advances in River Engineering
著者(英): Tomoyuki NAGAI, Morihiro HARADA, Hironori HAYASHI and Kuniharu TAKAHASHI
タイトル(英): CONSERVATION MEASURES OF CHANNEL STABILIZATION AND POOLRIFFLE STRUCTURE RESTORATION IN THE HII RIVER
抄録(英): This paper reports a series of actions to conserve channel stabilization and pool-riffle structure in the Hii River disaster restoration works. The Hii River is an urban river which flow through Fukuoka city. First, the outline of heavy rainfall disaster in July 2009 is presented. Secondly, some concerning matters in the improvement plan are discussed. The largest issue was lack of channel stability after changing cross-sectional channel form by riverbed excavation. One dimensional bed deformation analyses were conducted to discuss channel stability and necessity of countermeasure. In result, the river administrator employed two new types of river structure to conserve channel stability and pool-riffle structure in the Hii River. This case study presents a way to resolve the conflict between disaster prevention and ecosystem conservation in urban rivers.
キーワード(英): pool-riffle structure, channel stabilization, movable bed simulation, rock riffle structure
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