| 摘要 |
PROBLEM TO BE SOLVED: To provide a tidal wave sluice enabling the saving of cost and time, less constrained with respect to site location, securely functioning, not providing risk to an operator, and suppressing adverse effect on river flows, lives, industrial activities, landscape, and growing environment for living organism. SOLUTION: A river floor near the mouth of a river is formed smooth to use it as a foundation for a tidal wave sluice. A bed is installed on the surface of water at such a level that can secure a necessary flow amount in the direction that crosses the water flow of the river. A lower layer tidal wave flow cut-off board is mounted on the bed in the direction that crosses the flow of the river. An upper layer tidal wave flow cut-off board having a floating body is swingably mounted on the bed. The tidal wave sluice comprises a lower layer tidal wave flow cut-off board drive mechanism and an upper layer tidal wave flow cut-off board raised attitude holding mechanism holding the raised attitude of the upper layer tidal wave flow cut-off board when raised. Water cut-off boards having swing support parts installed on the upstream side of the foundation placed on the river floor and swing support parts combined with the swing support parts are arranged parallel with each other in a direction crossing the flow of the river. The tidal wave sluice comprises a water cut-off board raised attitude holding mechanism stabilizing the water cut-off boards when the water cut-off boards are raised and a water cut-off board connection mechanism loosely connecting the adjacent water cut-off boards to each other. COPYRIGHT: (C)2006,JPO&NCIPI
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