背水影響が堤防決壊拡幅現象に与える影響

島田 友典; 渡邊 康玄; 深澤 アダム 翔; 前田 俊一; 横山 洋

doi:10.2208/jscejhe.75.2_I_1405

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

Online ISSN : 2185-467X
ISSN-L : 2185-467X

Annual Journal of Hydraulic Engineering, JSCE, Vol.64

THE EFFECT OF BACKWATER ON LEVEE BREACH PROCESSES

Tomonori SHIMADA, Yasuharu WATANABE, Sho Adam FUKAZAWA, Shunichi MAEDA, Hiroshi YOKOYAMA

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Keywords: levee breach, overflow, backwater

JOURNAL FREE ACCESS

2019 Volume 75 Issue 2 Pages I_1405-I_1410

DOI https://doi.org/10.2208/jscejhe.75.2_I_1405

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Abstract

In August 2016, the tributaries of Tokoro River had a levee breach caused by the backwater of Tokoro River. This study aims to clarify the following point, the effect of backwater on levee breach processes by using a numerical model to simulate levee breaches. The results of the simulation are as follows : river width and normal flow affect mechanism of widening of the levee breach opening.

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