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- IGARASHI Yoshiya
- Graduate School of Science and Engineering, Saitama University
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- TANAKA Norio
- Graduate School of Science and Engineering, Saitama University
書誌事項
- タイトル別名
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- THE EFFECTS OF LEVEE-BREACH TIMING AT THE UPSTREAM OF THE TOKIGAWA RIVER AND THE JUNCTION SECTION OF THE TOKIGAWA AND OPPEGAWA RIVERS ON THE FLOOD VOLUME FROM THE RIVERS
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説明
<p> Typhoon Hagibis 2019 recorded the highest precipitation in history, in several areas of East Japan. Levee breaching occurred at 7 places in the Arakawa River system. The risk of downstream migration should be discussed when conducting river channel management. For this purpose, it is necessary to understand the inundation between the river and the flood plain. Therefore, the effects of the levee breaching of the Tokigawa River and the timing on flood volume were considered as a first step.</p><p> It was suggested that the levee at the junction section of the Tokigawa River and the Oppegawa River gradually scoured, considering the change in water-level hydrograph by changing the levee breaching timing. In addition, it can be considered that the left levee breaching at the Tokigawa River at 6.5 KP occurred after 10:00 PM on October 12th, noting the change in flood volume by changing the levee breaching timing. The inundation on the right side of the Tokigawa River in the section managed by Saitama Prefecture was caused by the inundation from the Kasumi-tei (open levee); therefore, the levee breaching at the 1.4 KP right levee had little effect on the inundation level.</p>
収録刊行物
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- Journal of JSCE
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Journal of JSCE 10 (1), 213-227, 2022
公益社団法人 土木学会
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詳細情報 詳細情報について
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- CRID
- 1390573407594246016
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- NII論文ID
- 130007958453
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- ISSN
- 21875103
- 2185467X
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- 抄録ライセンスフラグ
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