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oai:kitami-it.repo.nii.ac.jp:00007762
2022-12-13T02:21:13Z
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波状段波により輸送される河道内氷板の挙動に関する基礎的研究
A BASIC STUDY ON THE MOVEMENTS OF RIVER ICE FLOES DRIFTED BY A DISPERSIVE WAVE TRAIN
A BASIC STUDY ON THE MOVEMENTS OF RIVER ICE FLOES DRIFTED BY A DISPERSIVE WAVE TRAIN
阿部, 孝章
吉川, 泰弘
平井, 康幸
伊藤, 丹
open access
c 2013 公益社団法人 土木学会
Tsunami in rivers
Ice floe transport
Undular bore
This research detailed the interaction between the dispersive wave train and ice floe in tsunami-induced
wave propagation upstream in rivers. First we conducted hydraulic experiments to investigate the effects
of ice floe length and thickness using field observation data obtained when river ice breakup and scattering
were caused by the 2011 Tohoku Pacific-Coast Earthquake tsunami. We measured transportation velocities
of ice floes using an image analysis technique. Second, particle based numerical simulation was conducted,
by which we can easily handle with violent free surface motion and ice floe movements. Direct comparisons
of experimental photos and their corresponding simulation snapshots are made in terms of the reproduced
waveforms and the ice floe displacement. The work highlights potential risks of ice floes when tsunami
propagation upstream in a river occurs.
公益社団法人 土木学会
2013
jpn
journal article
VoR
https://kitami-it.repo.nii.ac.jp/records/7762
http://doi.org/10.2208/jscejhe.69.I_919
土木学会論文集B1(水工学)
69
4
I_919
I_924
https://kitami-it.repo.nii.ac.jp/record/7762/files/20013-03_波状段波により輸送される河道内氷板の挙動に関する基礎的研究.pdf
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2016-11-22