A method for controlling river sediment deposition

Abstract

The invention discloses a method for treating sediment deposition in a river channel. A sand extractor includes blades which are placed in a riverbed through a pile foundation and driven by an electric motor to rotate; the sand extractor stirs water in the riverbed to form a vortex and stirs sediment at the bottom of the riverbed, the sediment enters a sand storage tank with the vortex, and treatment of sediment deposition is realized; the lower blade bends downward to disturb the sediment on the riverbed surface, so that the sediment at the bottom suspends in water; the upper blade bends upward, the suspended sediment in the water are lifted to the surface; through slope-shaped burrock, inflow of water flow containing the sediment and precipitation of the sediment are convenient; cables are laid out in the riverbed and the pile foundation, and the motion trail of the water flow containing the sediment is avoided from disturbing; and through an automatic opening and closing sensor and timer, monitoring of the deposited sediment amount in the riverbed and automatic controlling of electric motor opening and closing are realized. According to the method, the structure is simple, operation is convenient, the maintenance cost is low, implementation is safe and reliable, the method is especially suitable for the front of a sluice gate on a river reservoir with a lot of sediment, and the method has high practicability and wide applicability.

Description

technical field [0001] The invention relates to a method for controlling river sediment, in particular to a method and a device for controlling river sediment deposition, and belongs to the technical field of water conservancy engineering. Background technique [0002] The problem of sediment silting in front of the gates is common in rivers and reservoirs with a lot of sediment. Serious sediment deposition will silt the gates, making the gates unable to open and close normally, and the engineering cases of failing to open the gates in time and causing accidents are at home and abroad. have happened. [0003] For reservoirs in the Guanzhong Plain and other places in Shaanxi, in order to prevent clogging, a small part of the gates are opened all the year round, resulting in the loss of precious water resources and continuous economic losses. There are also many gates that have to be abandoned due to years of silting. [0004] Gate clogging has always been a serious problem ...

AI Technical Summary

Problems solved by technology

[0002] The problem of sediment silting in front of the gates is common in rivers and reservoirs with a lot of sediment. Severe sediment deposition will silt the gates, making the gates unable to open and close normally, and engineering cases that cause accidents due to failure to open the gates in time are at home and abroad. happened

[0003] For reservoirs in the Guanzhong Plain and other places in Shaanxi, in order to prevent clogging, a small part of the gates are opened all the year round, resulting in the loss of precious water resources and continuous economic losses

There are also many gates that have to be abandoned due to years of silting

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