| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent intrusion of a person and an animal, and to prevent entanglement of refuse and alga.SOLUTION: An intrusion prevention mechanism 1 of a water channel 2 is provided by arranging a pair of flow guide devices 5 in an inlet 3a of a culvert part 3 formed in the water channel 2. In the respective flow guide devices 5, a support 8 having a support arm 6 and a support frame is installed by three sets on an upper wall surface of the inlet 3a of the culvert part 3, and a check plate 10 is fixed to a lower part of the respective support frames. The respective support arms 6a, 6b and 6c are successively set long in the length toward the outside from the central side of the water channel 2, and the check plate 10 is slantingly arranged in the horizontal direction to a water flow. The check plate 10 of the pair of flow guide devices 5 is installed in a substantially truncated chevron shape, a clearance is formed between both check plates 10, a clearance is formed between the respective check plates 10 and a bottom part of the water channel, and the water flow is passed.</p> |
