Controlled drainage structure and method for emergency treatment of barrier lake
A technology of emergency treatment and discharge trough, which is applied in barrage/weir, water conservancy engineering, sea area engineering, etc. It can solve the problems of destructive impact on downstream bridges, poor disposal effect of barrier lakes, and not very successful, so as to prolong the collapse time, reduce submerged height and scour range, and reduce damage and loss effects
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[0023] Specific implementation method
[0024] The present invention will be further described below in conjunction with the drawings.
[0025] Such as figure 1 , figure 2 As shown, the present invention includes a drain groove 2, which is located in the middle and lower part of the dam body 1 along the water flow direction, and also includes an anti-scouring structure 3, which is arranged in the drain groove 2.
[0026] The function of the anti-scouring structure 3 is to obstruct the water flow in the drain groove 2, reduce the impact force of the water flow, reduce the peak value and flow velocity of the water flow, and extend the time of the discharge. The cross-sectional shape of the drain groove 2 is preferably rectangular, triangular, or trapezoidal. In order to set up the anti-scouring structure 3 quickly, conveniently and at low cost, the anti-scouring structure 3 is composed of a number of blocks 31 around the dammed lake, that is, the blocks 31 are existing on the dam bod...
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