METHOD OF PROTECTING GULLIES AGAINST EROSION WITH SURFACE RUNOFF Russian patent published in 2015 - IPC A01B13/16 E02B8/06 

FIELD: agriculture.

SUBSTANCE: method comprises placement on top 1 of the feed tray 2 connected with the outlet portion to the upper part of the well 4. The discharge trays 8, 9, 10 are mounted close and sequentially to the well 4, with the chambers 11, 12, 13 decreasing in height towards the bottom of the gully. The lower part of the well 4 and the mounted energy damping elements, made in the form of chambers 11, 12, 13, are embedded in the permeable layer 18. In the lower parts of the well 4 and the chambers 11, 12, 13 the perforation 20 is made. The discharge tray 8 is provided with a slotted hole 14 coinciding with the mark of the bottom of the discharge tray 8. Through slotted hole 14 the well 4 is communicated to the discharge tray 8 along the flow stream. The upper part of the wall 5 of the well 4 is provided with a visor 7 additionally bent toward the feed tray 2. The wall of the discharge tray 8 is provided with openings for the inlet tubes 16. In the well 4 and the discharge chambers 11, 12, 13 the grating 17 is mounted, having longitudinal slots towards the stream flow in front of discharge trays 8, 9, 10. The wall of the last discharge tray 10 is connected to a polyethylene tube 23 made perforated in its end portion, and entered to the protective pad 26 in the bottom of the gully, made of stamped rubble.

EFFECT: increased degree of energy dissipation of discharge stream and reduced distribution of the wave flow, which increases the reliability and lifetime of the structure of the water-collecting device to protect the gully against erosion.

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