DEVICE FOR BLOCKING BED OF SMALL RIVER Russian patent published in 2023 - IPC E02B7/00 E02B3/02 

FIELD: hydraulic engineering.

SUBSTANCE: device for blocking the bed of a small river is made in the form of a dam made of bulk soil, placed between two rows of frame fencing panels, while the fence is made in the form of spatial structure 1, in which the frame panels are made of metal, their rows are located at a distance of 2-4 meters from each other and connected to each other by cross-links 2. On the panels of each row, anchors in the form of anchor piles 3 are installed with the ability to move in a vertical plane relative to the panels. On the outer side of the row of panels, facing the upstream, at least one perforated pipe 5 is fixed vertically, to the full height of the metal panels, into which the suction pipeline of the water pump is freely inserted for pumping water from the upstream. On the outside of the row of panels, facing the downstream, suction line 9 of the ejector pump is installed with the possibility of vertical movement, which is structurally connected to the pressure pipeline of the water pump for pumping water from the upstream. All the pumping equipment is mounted on platform 11, installed in the upper part of the spatial structure of the dam. It is advisable to provide an automatic shutdown for the ejector pump when water is completely pumped out from the tailwater.

EFFECT: quick installation of the dam, acceleration of preparatory work, preservation of the current river flow by pumping the flow with a water (blade) pump while simultaneously pumping out the water volume with an ejector pump from the tailwater isolated by the dam, leaving the river bottom open to remove bottom sediments and clear the river of blockages solid inclusions, household waste and fallen trees.

2 cl, 5 dwg