METHOD TO PROTECT TRANSIT CHANNEL AGAINST SEDIMENTS Russian patent published in 2013 - IPC E02B8/02 

FIELD: construction.

SUBSTANCE: method includes arrangement of a trench 7 between supply 24 and transit 18 channels, a lock 5 in the form of rigidly fixed webs with excitation of cross circulation of the flow, a sediment-diverting channel 6, a wash hole 4, which is arranged in an inclined manner in direction of the flow, and a rift. A drive is made in the form of a float, traction rods and a drain pipeline. The lock is made in the form of a vertical shield 1, the lower edge of which is arranged below the channel bottom. As water level increases upstream the vertical shield, which serves as a circulating rift, the shield 1 is moved in guides with the possibility of vertical displacement along the height of the trench 7, which is divided into two unequal parts. The lower edge of the vertical shield is equipped with two rigidly connected plates, placed in the bottom part of the trench, the upper (front) 2 of them has length larger than the horizontal lower plate 3. The upper plate 2 provides for the possibility of an inclined jet-directing element towards a sediment-washing opening 4, and the lower plate 3 provides for a protective screen.

EFFECT: higher efficiency of control by reduction of sediments feed into a transit channel and reduction of inefficient water discharge for washing of sediments, provides for the possibility to adjust a hydraulic structure of a flow in a draining trench.

5 cl, 3 dwg