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タイトル別表記
Study on Record Flood Peaks of Smaller Rivers in Sanin Region
ファイル
言語
日本語
著者
田中 礼次郎
内容記述(抄録等)
The distribution character of heavy rainfall in recent Japan sounds a warning to us that it is necessary to put into consideration of the record flood peak observed at a point in a river situated within a region in which the meteorological and hydrological conditions are almost simillar to each other, in determining the required spillway capacity to insure the safty of a dam. Unfortunately, however, the physical or statistical characteristics of the areal maximum of flood peak has not hitherto been studied enough to serve for the engineering practice in Japan.
This study has been carried out to cope with this situation from the view point that the flood peak discharge is a reflection of both characteristics of rainfall concentration in time and space and of runoff of the river basin.
The Hi and Gonokawa river basins have been chosen as the objective basin. The record of heavy rainfall observed at several points covered a river basin have been investigated to disclose the DAD characteristics of the basin. The DAD equation is then combined with the equation of the time of flood concentration to find a rational form of the equation for flood peaks. Finally, the equation for flood peaks is modified to express a curve enveloping record flood peaks in m^3/sec/<km>^^^2. The formula for enveloping curve has shown good fitness to record flood peaks in Sanin region.
掲載誌名
島根大学農学部研究報告
13
開始ページ
124
終了ページ
133
ISSN
0370940X
発行日
1979-12-15
NCID
AN00108015
出版者
島根大学農学部
出版者別表記
Shimane University, Faculty of Agriculture
資料タイプ
紀要論文
部局
生物資源科学部
備考
開学30周年記念号