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oai:kitami-it.repo.nii.ac.jp:00009037 2026-02-17T02:41:22Z 1:86

河岸浸食に及ぼす河床形状の影響 Influence of bar formation to bank erosion 渡邊, 康玄 ワタナベ, ヤスハル WATANABE, Yasuharu 北見工業大学 福岡, 将太 フクオカ， ショウタ FUKUOKA, Shota open access c2012 公益社団法人　土木学会 flood flow unsteady flow alternate bar stability analysis riverbed morphology In the recent years, rivers at valley often flood because of increasing local downpours all over Japan, giving a lot of damage to the houses, roads, and bridges. A sandbar formed on river bed makes a meandering flow and causes a local scoured parts and deposition parts. The bar formation is closely related to a river disaster. In this research, to grasp the relation between a bar formation and bank erosion is tried for two floods which caused serious bank erosion. Wave number analysis of bed configuration and linear stability analysis under unsteady flow condition were conducted. Although the investigation on the erosion process of a river channel will be necessity, correspondence with bar formation and the bank erosion part has been grasped. 土木学会 2012-06 jpn journal article VoR https://kitami-it.repo.nii.ac.jp/records/9037 河川技術論文集 18 269 274 https://kitami-it.repo.nii.ac.jp/record/9037/files/土木学会河川技術論文集, 18, 269-274.pdf application/pdf 2 MB 2021-03-31