河道内樹林化による複列砂州の固定化とみお筋の形成過程に関する考察
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概要
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Forested bars with large relative height between channel bed and bar surface is one of the typical figures in gravel-bed rivers. That causes strong meandering flow and bank erosion in several medium-size floods. In this study, such a morphological feature in gravel-bed rivers with double-row bars is investigated considering interaction between wood land expansion and channel formation process. A depth-averaged flow and bed-variation analysis is carried out introducing the events of invasion and destruction (wash-out) of riparian trees. Result of the simulation shows formation of a single strong meandering channel with fixed bars which can be seen as a resent channel characteristic in double-row bars with vegetation.
- Japan Society of Civil Engineersの論文
Japan Society of Civil Engineers | 論文
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