Bed Evolution Processes after Falling Works Removal

倒塌工程拆除后床层演变过程

• 批准号: 22560511
• 负责人: MUTO Yasunori
• 金额: $ 2.91万
• 依托单位: The University of Tokushima
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22560511/
• 关键词: 河川工学; 河道横断構造物; 河床変動; 砂州; 生息場基盤; 水理実験; 数値シミュレーション

Bed evolution processes in both the upstream and downstream of a falling works after its partial removal were investigated experimentally. Numerical simulation model for bed evolution with a 2-D unstructured mesh was also developed and applied to the datasets obtained in the experiments and the field. Equilibrium bed configurations and their developing processes are influenced by several parameters such as initial setup of the structure, its removal shape and bed material distributions. The results indicate that complex 3-D flow behavior and resultant sediment motions including their sorting induced after the removal are the crucial issues for application to real rivers.

在实验中研究了部分去除后跌落作品的上游和下游的床进化过程。还开发了使用2D非结构化网格的床演化的数值模拟模型，并应用于实验和场中获得的数据集。平衡床的配置及其发育过程受几个参数的影响，例如结构的初始设置，其去除形状和床材料分布。结果表明，复杂的3-D流动行为和最终的沉积物运动在于拆除后引起的分类是对真实河流应用的关键问题。

项目成果

Local scour and sediment size variation around a spur dyke

丁坝周围的局部冲刷和沉积物尺寸变化

• 发表时间: 2010
• 期刊: Proc.Int'l Syrup.on River Sedimentation 2010
• 作者: Zhang;H.;他2名
• 通讯作者: 他2名

Weir removal and its influence on hydro-morphological features of upstream channel

堰拆除及其对上游河道水貌特征的影响

• 发表时间: 2012
• 期刊: Journal of JSCE, Ser.A2 (Applied Mechanics)
• 作者: Zhang;H.;Muto;Y.;Nakagawa;H. and Nakanishi;S.
• 通讯作者: S.

取水堰上流部における堆積河床地形の詳細計測

进水堰上游沉积河床地形详测

• 发表时间: 2011
• 作者: Zhang;H.;et al.;武藤裕則
• 通讯作者: 武藤裕則

Bed Evolution Process after Dam Removal in the Upstream Reach

上游撤坝后河床演变过程

• 发表时间: 2010
• 期刊: Proc.Int'l Symp.on River Sedimentation 2010
• 作者: Muto;Y.;Zhang;H.;他1名
• 通讯作者: 他1名

Upstream bed evolution after partial removal of a low head dam

部分拆除低水头坝后上游河床的演变

• 发表时间: 2012
• 作者: Zhang;H.;et al.
• 通讯作者: et al.