2024-03-29T13:37:41Z
https://kitami-it.repo.nii.ac.jp/oai
oai:kitami-it.repo.nii.ac.jp:02000022
2022-12-13T02:24:11Z
1:86
戸蔦別川における床固工群と樹林帯の出水時の効果
FUNCTIONAL EVALUATION OF THE GROUNDSILLS AND THE FOREST ZONE IN THE TOTTABETSU RIVER
伊藤, 朱花
ITO, Ayaka
渡邊, 康玄
ワタナベ, ヤスハル
Watanabe, Yasuhau
渡邊
ワタナベ
Watanabe
康玄
ヤスハル
Yasuhau
池島, 剛
IKESHIMA, Tsuyoshi
松岡, 暁
MATSUOKA, Akira
伊藤, 隆郭
ITO, Takahiro
谷, 昭彦
TANI, Akihiko
open access
c 2018 土木学会
groundsill
sediment transport
gourd shaped channel
channel movement
Tottabettu River
forest zone
The Tottabetsu River had the sharp channel change acco1npanying sediment discharge in the past. It became clear that the section ("anti-node") which a river channel moves to a transverse direction greatly, and the section ("node") where a river channel hardly moves existed periodically (gourd shaped channel). It was decided that main groundsills at the "node" and ancilla1y groundsills at the "anti-node" would be built. Toe first groundsills was built in 1988 and 15 sets of groundsill were completed in 2010. However, the sediment transport control effect of these groundsills was not verified until the present. The large-scale flood occurred at this basin in August 2016. In order to velify the effect of the groundsills, the difference of the river channel change at the time of this flood between with and without groundsills was calculated using a numeric simulation model. It was found that the groundsills and forest zone had controlled not only sediment transport but also movement to the transverse direction of channel.
土木学会
2018-06
jpn
journal article
VoR
https://kitami-it.repo.nii.ac.jp/records/2000022
河川技術論文集
24
191
196
https://kitami-it.repo.nii.ac.jp/record/2000022/files/土木学会河川技術論文集24,p191-196.pdf
application/pdf
1.6 MB
2021-03-31