IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Numerical assessment technique on damages of river flood and inundations caused by large floods
Numerical assessment technique on damages of river flood and inundations caused by large floods
Author : TATSUFUMI MIYAZAKI(1) & SHOJI FUKUOKA(2)
ABSTRACT
Successive large floods exceeding the designed discharge occurred in the Kagetsu River in July 3 and 14, 2012. The
floods caused serious damages such as levee breaches and flood inundations in densely residential area. In this paper,
we analyzed both flood behavior in the river channel and inundation area by numerical analyses of quasi-three dimensional
flows and two-dimensional bed variations. Causes of levee breaches were investigated by field survey and numerical
computation results of velocity distributions and bed variations during the floods. Numerical simulation showed that the
river-crossing structure (Yuuta Bridge) caused severe overbank flows by the driftwood accumulations and large inundation
over dense housing areas.
File Size : 4,851,204 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 19/08/2015
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