2012 Fiscal Year Final Research Report
Bed Evolution Processes after Falling Works Removal
| Project/Area Number |
22560511
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Hydraulic engineering
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| Research Institution | The University of Tokushima |
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Principal Investigator |
MUTO Yasunori 徳島大学, 大学院・ソシオテクノサイエンス研究部, 教授 (40263157)
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| Co-Investigator(Kenkyū-buntansha) |
ZHANG Hao 京都大学, 防災研究所, 助教 (90452325)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 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 |
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| Research Abstract |
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.
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