加藤清正による流水制御法「白川の石塘」の機能評価
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概要
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In Kumamoto Prefecture, there are many flood protection and water utilization works as diversion structures,levees and groins made of stones which were constructed by Kiyomasa Kato as a feudal lord in the early Edoera. However, most works have not been clarified with actual evidence as to how they play a role in floodprotection. In this paper, Ishidomo of the Shirakawa river, which was pointed out as masonry separationlevee for flood protection works, has been investigated from the viewpoint of historical river regulationmethods by applying a hydraulic model to Ishidomo with culvert or overflow spill way . The model scalewas 1/250. In addition, abandoned path of the Shirakawa River were identified by topographical informationanalysis based on laser profiler data and old map in Edo era.
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