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タイトル: 小流域からの豪雨時土砂流出の予測
その他のタイトル: PREDICTION OF THE SEDIMENT YIELD FROM A SMALL BASIN IN CASE OF HEAVY RAINFALL
著者: 高橋, 保  KAKEN_name
中川, 一  KAKEN_id
著者名の別形: TAKAHASHI, Tamotsu
NAKAGAWA, Hajime
発行日: 1-Apr-1989
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: 32
号: B-2
開始ページ: 689
終了ページ: 707
抄録: A method was given that predicts the number of shallow landslides which occurin a mountainous basin with complex topography in case of a severe rain storm ofarbitrary intensity and time sequences. The method is based on the analysis ofinfiltrated flow, surface flow and the stability against slide in the top soil layers.The method was proved feasible by comparing to the actual data. Each slide unitwas allotted to a certain time and space, and if the route from the slide to thevalley bottom was steeper than 20 the slid earth block was supplied to the streamat the end of the route and eroded by the stream flow simultaneously calculated.The system of equations to analyse the sediment transport and channel bedvariation was used to estimate the sediment yield from the basin due to suchprocesses. The quantity of sediment yield changes with the distribution pattern ofthe landslides in the basin, but the width of variation was proved small incomparison to that change should be due to variation of other factors.
URI: http://hdl.handle.net/2433/72191
関連リンク: http://www.dpri.kyoto-u.ac.jp/nenpo/nenpo.html
出現コレクション:No.32 B-2

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