リニューアル(12)

[VI-761] Development of a waterway lid to prevent waterway blockage due to dead leaves, etc.

〇yoshiaki shiraishi¹, yoshiaki yamamoto¹, tsuyoshi nakade², masahiro fujita² (1.Keicon, 2.Kumagai Gumi)

Keywords:Renewal project, Drainage structure, Steel canal, Flood control

If a U-shaped channel is used as a small drainage channel on the slope, all the slope drainage flows down the U-shaped channel and flows into the vertical drainage or slope drainage basin according to the channel gradient, but the accumulation of dead leaves etc. If the load increases and the tractive force is exceeded, the waterway will be closed in front of the basin, etc., causing local flooding from the waterway and causing disasters such as slope erosion. In order to solve these problems, we developed a lightweight lid that can maintain the drainage function even when dead leaves accumulate, and allow for manual transport to the site, and confirmed the performance on site.