| 摘要 |
PURPOSE:To reduce the speed of effluent water by expanding the interval of blocks by a method in which blocks in which the interval between paired left and right-handed main walls is gradually narrowed, a partition wall in the middle of the vertical direction of both the main walls is gradually inclined, and nozzles are provided at the upper and lower parts of the partition wall are set radially. CONSTITUTION:In a block B, the interval between paired left and right-handed main walls 1 and 2 is gradually narrowed, a partition wall 3 is provided in a gradually inclined manner in the middle of the vertical direction of both the main walls 1 and 2, a partition wall 4 is laid from the partition wall 3 at the narrow ends of both the main walls 1 and 2 to the upper parts, and nozzles 5 and 6 are provided at the upper and lower sides of the partition wall 3 between both the main walls 1 and 2. The blocks are set radially in such a way that the nozzles 5 and 6 are inclined toward the sides from the central parts in the horizontal direction of a tailrace 7. The effluent water is dived into the front water region with a sufficient inertial force by means of the upper and lower nozzles 5 and 6 of the blocks B, and thereby the flow speed of the effluent water is reduced by the expansion of the water channel. |
