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Title: 亀岡盆地の流出・氾濫解析に基づく日吉ダムの治水操作手法の検討
Other Titles: Study on Flood Control Operation Method of Hiyoshi Dam Based on Runoff Inundation Analysis in Kameoka Basin
Authors: 岩本, 麻紀  KAKEN_name
竹門, 康弘  kyouindb  KAKEN_id
野原, 大督  kyouindb  KAKEN_id
小柴, 孝太  KAKEN_name
角, 哲也  KAKEN_name
Author's alias: IWAMOTO, Maki
TAKEMON, Yasuhiro
NOHARA, Daisuke
KOSHIBA, Takahiro
SUMI, Tetsuya
Keywords: 貯水池操作
氾濫解析
洪水調節
RRIモデル
超過洪水
reservoir operation
inundation analysis
flood control
RRI model
extreme event
Issue Date: Sep-2019
Publisher: 京都大学防災研究所
Journal title: 京都大学防災研究所年報. B
Volume: 62
Issue: B
Start page: 663
End page: 670
Abstract: Heavy rainfall caused severe flood disasters across the western Japan in July 2018. In order to decrease frequent inundation in the downstream reaches where river improvement works have never been completed, some reservoir dams are often operated to control small and/or medium floods by releasing a less discharge than originally designed. However, this operation can increase a risk of severe flood inundation in case of large floods, because the water level of the reservoir increases faster to the full storage level and eliminates the flood control function of the reservoir. This study aims at analyzing impacts of different flood control operations for floods of various scales including large flood events using rainfall runoff inundation analysis in order to identi fy an effective operation rule for flood risk reduction.Heavy rainfall caused severe flood disasters across the western Japan in July 2018. In order to decrease frequent inundation in the downstream reaches where river improvement works have never been completed, some reservoir dams are often operated to control small and/or medium floods by releasing a less discharge than originally designed. However, this operation can increase a risk of severe flood inundation in case of large floods, because the water level of the reservoir increases faster to the full storage level and eliminates the flood control function of the reservoir. This study aims at analyzing impacts of different flood control operations for floods of various scales including large flood events using rainfall runoff inundation analysis in order to identi fy an effective operation rule for flood risk reduction.
URI: http://hdl.handle.net/2433/244992
Related Link: http://www.dpri.kyoto-u.ac.jp/publications/nenpo/
Appears in Collections:Vol.62 B

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