| 摘要 |
PROBLEM TO BE SOLVED: To provide a river bed forming block which can prevent scouring caused by a water flow, by enhancing shape retentivity of a formed artificial river bed, and which can alleviate an erosive action on a river bank by guiding a channel for river water in a desired direction by a flow guiding body. SOLUTION: Characteristically, this river bed forming block 1f, which is arranged to act on a flow of river water on the river bed, comprises: a rod-like flow guiding portion 2d which is formed in a linear, curved or bent shape; at least one shaft portion 3 which is fixed to the flow guiding portion 2d; and at least one leg portion 4 which is provided in a circumferentially protruded manner near the end, on the side of the nonprovision of the flow guiding portion 2d, of the shaft portion 3. COPYRIGHT: (C)2009,JPO&INPIT
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