2014 Fiscal Year Final Research Report
Research on failure mechanisms of landslide dam and river embankment and the estimation of flood hydrograph due to failure of them
| Project/Area Number |
22360197
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KAWAIKE Kenji 京都大学, 防災研究所, 准教授 (10346934)
BABA Yasuyuki 京都大学, 防災研究所, 准教授 (30283675)
ZHANG Hao 京都大学, 防災研究所, 助教 (90452325)
MIZUTANI Hideaki 京都大学, 防災研究所, 助教 (00636756)
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| Project Period (FY) |
2010-04-01 – 2015-03-31
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| Keywords | 天然ダム / 河川堤防 / 洪水 / 破堤 / 土石流 / 氷河湖 / サクション / 浸透 |
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| Outline of Final Research Achievements |
Researches on failure process of glacial lake morain dam, landslide dam, and river dykes due to overtopping of water, etc. have been investigated through the physical model experiments and numerical simulation using integrated model newly developed. The field assessment of the real glacial lake in Nepal has been studied and the impact of climate change on this glacial lake has been discussed. The numerical modeling of erosion process of dam (dyke) body made by non-cohesive fine sediment was investigated with the results of flume experiments. In this research, the model was verified using some results of laboratory experiments. The numerical results of temporal variations of moisture profile inside the dam body, dam surface erosion, and the deposition behind the dam were found to be consistent with the experimental results. Water and sediment discharges outflowing due to dam breach were simulated and the results were fairly well agreed with experimental ones.
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| Free Research Field |
工学
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