2005 Fiscal Year Final Research Report Summary
Study on the functions of hydraulic structures and riverbed evolution for the basin-wide sediment managements
| Project/Area Number |
14350265
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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 |
水工水理学
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
NAKAGAWA Hajime KYOTO UNIVERSITY, Disaster Prevention Research Institute, Professor, 防災研究所, 教授 (80144393)
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| Co-Investigator(Kenkyū-buntansha) |
SAWADA Toyoaki KYOTO UNIVERSITY, Disaster Prevention Research Institute, Associate Professor, 防災研究所, 助教授 (60027258)
ISHIGAKI Taisuke Kansai University, Faculty of Engineering, Professor, 工学部, 教授 (70144392)
SATOFUKA Yoshifumi KYOTO UNIVERSITY, Faculty of Agriculture, Associate Professor, 農学研究科, 助教授 (20215875)
MUTO Yasunori KYOTO UNIVERSITY, Disaster Prevention Research Institute, Assistant Professor, 防災研究所, 助手 (40263157)
BABA Yasuyuki KYOTO UNIVERSITY, Disaster Prevention Research Institute, Assistant Professor, 防災研究所, 助手 (30283675)
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| Project Period (FY) |
2002 – 2005
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| Keywords | sediment yield / sediment management / check dam / topographical change / sediment flushing / groyne / embayment / numerical simulation |
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| Research Abstract |
In order to execute appropriate basin-wide sediment managements, it is necessary to know the processes of sediment yield, transport, and deposition. In this research, observations of sediment yield were done and found that in the central Japan, freezing and thawing of the ground influence the amount of sediment yields and it has little correlation with rainfall which will not generate landslides. A rainfall and sediment runoff model and a prediction model of surface landslide were developed where the time variation of moisture contents was taken into account, and the validity of the models was checked by the observed and experimental data. In the sediment transport process, it is very important to discharge sediment downstream from check dams and reservoirs appropriately from the view point of amount of sediment and the diameter. Therefore, a numerical simulation model was developed which can express the jamming process of the big boulders into junglegym-type check dams. The model was found to be valid by the experimental data. Moreover, sediment flushing and sluicing from the reservoir become very important due to environmental problem as well as the problem of the decrease of reservoir functions. The new method to remove the sediment deposited in the reservoir downstream was developed and the availability of it is checked by the experimental data Due to the sediment supply from upstream, middle and downstream regions of the riverbed will be strongly influenced resulting in the variation of the river topography. In order to evaluate the effectiveness of hydraulic structures in the river, a numerical model was developed to simulate the flow and local scour around hydraulic structures. The model was found to be valid by comparing the computed results with experimental data. The functions of traditional riparian works such as Bandal-like structures were also investigated.
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[Journal Article] Laboratory experiments on moisture content variation and landslides caused by transient rainfall2006
Author(s)
Sharma, R.H., Nakagawa, H., Baba, Y., Muto, Y., Ano, M.
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Journal Title
Annual Journal of Hydraulic Engineering, JSCE Vol.50
Pages: 151-156
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Prediction of local scour depth around Bandal-like structures2006
Author(s)
Rahman, M.M., Nakagawa, H., Ito, N., Haque, A., Islam, T., Rahman, M.R., Hoque, M.M.
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Journal Title
Annual Journal of Hydraulic Engineering, JSCE Vol.50
Pages: 163-168
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Flow and bed deformation around a series of impermeable and permeable spur dykes2005
Author(s)
Zhang, H., Nakagawa, H., Ishigaki, T., Muto, Y., Khaleduzzaman, ATM
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Journal Title
Proc. of the International Conference on Monitoring, Prediction and Mitigation of Water-Related Disasters
Pages: 197-202
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Three-dimensional mathematical modeling of local scour2005
Author(s)
Zhang, H., Nakagawa, H., Ishigaki, T., Muto, Y., Baba, Y.
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Journal Title
Jour. of Applied Mechanics, JSCE Vol.8
Pages: 803-812
Description
「研究成果報告書概要(和文)」より
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[Journal Article] On sediment yield and transport in the Lesti River basin, a tributary of the Brantas River, Indonesia,-Experiences from field observations and remotely sensed data-2005
Author(s)
Nakagawa, H., Satofuka, Y., Muto, Y., Ohishi, S., Sayama, T., Takara, K.
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Journal Title
Proc. of the International Symposium on Fluvial and Coastal Disasters (CD-ROM版)
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Flow and bed deformation around a series of impermeable and permeable spur dykes2005
Author(s)
Zhang, H., Nakagawa, H., Ishigaki, T., Muto, Y., Khaleduzzaman, ATM
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Journal Title
Proc.of the International Conference on Monitoring, Prediction and Mitigation of Water-Related Disasters
Pages: 197-202
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Development of estimation method for impact energy of raindrop considering raindrop size distribution and the relationship between the impact energy and local sediment yield2005
Author(s)
Oishi, S., Sayama, T., Nakagawa, H., Satofuka, Y., Muto, Y., Dian Sisinggih, Sunada, K.
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Journal Title
Annual Journal of Hydraulic Engineering, JSCE (in Japanese) Vol.49
Pages: 1087-1092
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Development of a measuring system for particle size distribution in gravel-bed rivers by using an image processing technique2005
Author(s)
Uchio, M., Nakagawa, H., Sawada, T., Yokoyama, K., Uesugi, M., Fukuda, Y.
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Journal Title
Jour.of the Japan Society of Eros.Cont.Engg.(in Japanese) Vol.58, No.2
Pages: 26-31
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Three-dimensional mathematical modeling of local scour2005
Author(s)
Zhang, H., Nakagawa, H., Ishigaki, T., Muto, Y., Baba, Y.
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Journal Title
Jour.of Applied Mechanics, JSCE Vol.8
Pages: 803-812
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] On sediment yield and transport in the Lesti River basin, a tributary of the Brantas River, Indonesia, -Experiences from field observations and remotely sensed data-,2005
Author(s)
Nakagawa, H., Satofuka, Y., Muto, Y., Ohishi, S., Sayama, T., Takara, K.
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Journal Title
Proc.of the International Symposium on Fluvial and Coastal Disasters (CD-ROM)
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Velocity measurements around non-submerged and submerged spur dykes by means of large-scale particle image velocimetry2004
Author(s)
Fujita, I., Muto, Y., Shimazu, Y., Tsubaki, R., Aya, S.
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Journal Title
Journal of Hydroscience and Hydraulic Engineering, JSCE Vol.22, No.1
Pages: 51-61
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Velocity measurements around non-submerged and submerged spur dykes by means of large-scale particle image velocimetry2004
Author(s)
Fujita, I., Muto, Y., Shimazu, Y., Tsubaki, R., Aya, S.
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Journal Title
Journal of Hydroscience and Hydraulic Engineering Vol.22, No.1
Pages: 51-61
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Studies on dredging in a reservoir using multi-hole suction pipe2004
Author(s)
Okano, M., Matano, F., Katayama, H., Tajima, Y., Nakagawa, H.
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Journal Title
Journal of Japan Society of Dam Engineers (in Japanese) Vol.14, No.4
Pages: 237-249
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Numerical simulation of sediment disasters caused by heavy rainfall in the Camuri Grande basin, Venezuela 19992003
Author(s)
Nakagawa, H., Takahashi, T., Satofuka, Y., Kawaike, K.
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Journal Title
Proc. of the 3rd International Conference on Debris-flow Hazards Mitigation : Mechanics, Prediction, and Assessment
Pages: 671-682
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Velocity measurements around non-submerged and submerged spur dykes by means of large-scale particle image velocimetry2003
Author(s)
Fujita, I., Muto, Y., Shimazu, Y., Tsubaki, R., Aya, S.
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Journal Title
Annual Journal of Hydraulic Engineering, JSCE (in Japanese) Vol.47
Pages: 943-948
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Numerical simulation of sediment disasters caused by heavy rainfall in the Camuri Grande basin, Venezuela 19992003
Author(s)
Nakagawa, H., Takahashi, T., Satofuka, Y., Kawaike, K.
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Journal Title
Proc.of the 3rd International Conference on Debris-flow Hazards Mitigation : Mechanics, Prediction, and Assessment
Pages: 671-682
Description
「研究成果報告書概要(欧文)」より
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