Flood prevention construction method
What are the most important flood prevention points? ｜ Flood prevention construction method
Flood prevention construction is the emergency measures taken to keep levee functional if it has sustained damage during a flood disaster.
■Flood prevention construction method
| Turn build | Add thickness to levee back slopes to prevent destruction. |
|---|---|
| Sheets (Omotemushirohari [tarpaulin]) | Prevent river side collapse. Fill in the holes leaking water. |
| Moon Ring | Prevent levee washout by stopping leaking openings from expanding by pilling sandbags to minimize the water pressure caused by difference in water level between the river and the leakage openings. |
| Kamadan construction | Pile up sandbags at the center of water leakage openings and utilize water pressure to stop the leakage. |
| Tree flowing (sinking) | Soften the running stream. Prevent river side collapse. Prevent river side still water loss (gentle stream section). |
| Sandbag Arena (Sandbag Stockpile) | Prevent overflow by piling sandbags at levee crown |