EFFECT ON SCOUR DEPTH OF FALLING HEIGHT OF OVERFLOW
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- ARIKAWA Taro
- 中央大学 理工学部都市環境学科
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- UEDA Sayuri
- 東京都港湾局東京港建設事務所
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- IGARASHI Hiromu
- 中央大学 理工学研究科都市環境学専攻
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- SEKI Katsumi
- 中央大学 研究開発機構
Bibliographic Information
- Other Title
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- 越流洗堀深に対する落下高さの影響に関する検討
- エツリュウセンボリシン ニ タイスル ラッカ タカサ ノ エイキョウ ニ カンスル ケントウ
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Abstract
The purpose of this study is to clarify the effect of the overflow falling height on the scour depth using physical experiments. Small-scale physical experiments were performed. The results indicate that the maximum scouring depth increases when the falling height of the overflow increases up to a given height. However, the maximum scouring depth decreases if the falling height is greater than the critical height because the diameter of the vortex decreases at such falling heights. The relation between the diameter of the vortex and the maximum scour depth is compared to the formula used in two previous studies. The scour depth determined in this paper is smaller than that estimated by the previously published formula. Thus, it is important to evaluate the velocity on the bottom for accurate estimation of the maximum scour depth.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 72 (2), I_1087-I_1092, 2016
Japan Society of Civil Engineers
