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.

通过实验研究了降尘系统部分拆除后上下游床层的演变过程。本文还建立了二维非结构化网格的床面演变数值模拟模型，并将其应用于试验和现场数据。床层结构的初始设置、床层的移出形状和床层物料的分布等参数对床层结构的平衡形态及其发展过程都有影响。结果表明，复杂的三维水流特性和泥沙运动，包括其分选后，去除诱导的关键问题是应用到真实的河流。

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

Effects of low head dam removal on channel morphology and process

低水头坝拆除对河道形态及过程的影响

• 发表时间: 2013
• 作者: Zhang;H
• 通讯作者: H