| 摘要 |
PROBLEM TO BE SOLVED: To provide a water channel capable of decreasing a speed of water flowing down on a channel bed.SOLUTION: A water channel includes: a concrete floor slab 1 that is provided in a covering manner on a surface of ground G; a plurality of roughness elements 3, 3... that are protrusively provided on the surface of the floor slab 1 serving as a channel bed; and a plurality of anchors 5, 5... that are implanted in the ground G under the channel bed. A head of the anchor 5 is anchored to the roughness element 3. The floor slab 1 and the roughness elements 3, 3... are made of a cement-based material, and the roughness elements 3, 3... are formed integrally with the floor slab 1. |
