Design Method of Main Channel Bank Protection Using Riverine Vegetation

利用河流植被的主航道护岸设计方法

• 批准号: 11555136
• 负责人: FUKUOKA Shoji
• 金额: $ 6.66万
• 依托单位: HIROSHIMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555136/
• 关键词: Vegetation groin; Reed bank; Riparian design; Cohesive soil bank; Field test; Bank widening process; Numerical; ヨシ原川岸; 河岸侵食軽減; 現地観測; 防災樹林帯; 数値解析; 河岸侵食; 水理実験

(1) Hydraulic experiments were performed for various arrangements of vegetation groins. Effect of vegetation groins was proved by assessing the degree of water level rise and reduction of bed scouring. The usefulness of ripraps was investigated to prevent from washing away of vegetation groins due to scouring of their foundation.(2) Three dimensional numerical simulation model was developed to clarify the installation effect of vegetation groins. The model was applied for laboratory and field tests of vegetation groins and showed fairly good explanation for the tests.(3) Three years field observations of bank erosion rate showed that reed covered bank reduced considerably the rate of bank erosion during floods.Erosive resistance of soil blocks containing reed roots put in the laboratory stream was assessed as functions of hydraulic quantities, soil property and density of reed root.(4) The widening process of cohesive soil bank was investigated by laboratory experiments. The computation method of flow in channels with erosive bank was presented by modeling widening mechanism of cohesive bank.

（1）进行了液压实验，以进行各种植被腹股沟的排列。通过评估水位的上升程度和卧床冲刷的减少，证明了植被腹股沟的影响。研究了RIPRAP的有用性，以防止由于其基础的搜索而清除植被腹股沟。（2）开发了三维数值模拟模型，以阐明植被凹槽的安装效果。该模型用于植被凹槽的实验室和现场测试，并在测试中显示出相当不错的解释。（3）三年对银行侵蚀率的现场观察表明，雷德覆盖的银行降低了洪水期间的银行侵蚀率。将含有芦苇根的土壤块评估为液压量，土壤特性和芦苇根密度的功能。（4）通过实验室实验研究了粘性土壤库的扩大过程。通过建模凝聚力库的机制，提出了具有侵蚀库的通道中流量的计算方法。

项目成果

福岡捷二: "透過型水制工が設置された直線流路における流れと川床変動"水工学論文集. 44. 1047-1052 (2000)

Shoji Fukuoka：“安装了渗透坝的直河道中的流量和河床波动”水利工程学杂志 44. 1047-1052 (2000)。

田畑 和寛: "荒川下流域におけるヨシ原の形成と保全のプロセス"河川技術論文集. Vol. 7. 273-278 (2001)

Kazuhiro Tabata：“荒川河下游芦苇床的形成和保护过程”河流技术论文第 7. 273-278 卷（2001 年）。

S.M.Habibullah BAHAR: "Numerical Analysis of Flow Field Inside and Near Eroded Part of Bank"Annual Journal of Hydraulic Enineering. 45. 583-588 (2001)

S.M.Habibullah BAHAR：“河堤内部和近侵蚀部分流场的数值分析”水利工程年度杂志。

福岡捷二: "異なる角度の越流型水制周辺流れの二次元数値解析"水工学論文集. 45. 385-390 (2001)

Shoji Fukuoka：“不同角度溢流型水坝周围流动的二维数值分析”水利工程学杂志 45. 385-390 (2001)。

白井 勝二: "利根川における護岸・水制の変遷とその今日的役割"水工学論文集. 46巻. 505-510 (2002)

白井克二：“利根川河岸保护和水系统的变化及其当前作用”水利工程学杂志第 46 卷 505-510（2002 年）。