| 摘要 |
This device comprises from the upstream side (ripple side) to the downstream side (protected side) : a front grating 1 inclined, from the bottom upwards and from the outside inwards, at an angle theta , and having a height h which is sufficient to form a screen from the maximum height of the ripple h + c above the mean level hm of the stretch of water 6 to the minimum height of the ripple h - c above the said mean level hm, this grating 1 having the effect of receiving and breaking the wave action of the ripple; a rear box 2 in the form of a frame of members 8, 9, 10, 11, 13, 16, 17, 18, 19 which is firmly fixed to the grating 1, in which a system of baffle plates 3 is arranged, lose their energy due to the said baffle plates and rejoin the calm water with practically zero speed, at the outlet of the system of baffle plates 3; and a support 4 driven into the ground 5 and the head 4A of which emerges from the water 6 carries, at its upper part, the grating 1 box 2 assembly. <IMAGE>
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