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ファイル | 記述 | サイズ | フォーマット | |
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a14b0p11.pdf | 521.06 kB | Adobe PDF | 見る/開く |
タイトル: | 市街地域の雨水流出特性 |
その他のタイトル: | RUNOFF CHARACTERISTICS IN AN URBAN AREA |
著者: | 角屋, 睦 岡, 太郎 |
著者名の別形: | KADOYA, Mutsumi OKA, Taro |
発行日: | 1-Apr-1971 |
出版者: | 京都大学防災研究所 |
誌名: | 京都大学防災研究所年報. B |
巻: | 14 |
号: | B |
開始ページ: | 143 |
終了ページ: | 155 |
抄録: | In this paper, runoff characteristics in an urban area are discussed on the basis of observeddata in the Tenjin Basin. Outline of the results are as follows:It seems that there exists a functional relation between peak diseherge, Qp, of flood runoff andits concentration time, tpc, such as tpc ∽ Qp-c ∽ re-c in which r, means the effective rainfallintensity and c constant. This suggests to us of usefulloess of the kinematic wave method for theurban runoff analysis, and the value of c must be near to but smaller than 0.4, generally. Theweight of river channel on concentration time is regarded as 10~20% in a mountain river, but theone is 50~60% in the Tenjin Basin.Runoff percent for heavy rainstormes is almost 100% and the peak runoff coefficient 0.7~1.0.In the Tenjin Basin. The value of equivalent roughness, N(m-1/3. Sec), defind in the kinematicwave method for slope surface, seems to be 0.01 in the detail model, and 0.004-0.006 in the roughmodel for the basin. |
URI: | http://hdl.handle.net/2433/69801 |
関連リンク: | http://www.dpri.kyoto-u.ac.jp/nenpo/nenpo.html |
出現コレクション: | No.14 B |
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