Sand discharging dam

Abstract

The invention discloses a sand discharging dam. The sand discharging dam comprises a retaining dam and a sand removal flap gate, wherein the retaining dam comprises a dam body which is arranged on bedrock and a prefabricated buttress; the dam body comprises a base and quay walls which are arranged on two opposite sides of the base; the prefabricated buttress is arranged on the base and is locatedbetween the quay walls on two opposite sides; the sand removal flap gate comprises a gate which is installed on the prefabricated buttress and a driving system which is used for driving the gate to open and close; and the driving system comprises an original state which enables the gate to be in a closed state, an opening state which enables the top end of the gate to move away from the prefabricated buttress and enables the bottom end of the gate to move towards the prefabricated buttress so as to open the gate and a closing state which enables the top end of the gate to move towards the prefabricated buttress and enables the bottom end of the gate to move away from the prefabricated buttress so as to close the gate. According to the sand discharging dam, river sand can be effectively discharged, the reduction of the water storage capacity of river water due to sediment accumulation in front of the dam is avoided, and the water taking operation is greatly facilitated.

Description

technical field [0001] The invention relates to the technical field of river water intake, in particular to a sand discharge dam. Background technique [0002] For rivers with shallow water and low flow, in order to achieve the purpose of water intake, the usual practice is to build a dam on the bedrock of the river channel to increase the water level, and then achieve the purpose of effective water intake. However, for rivers with high sand content, when the existing dams are used for treatment, river sand usually accumulates upstream of the dams. The accumulated river sand not only affects the opening and closing of the gates, but also reduces the risk of intercepting the water in the river. storage capacity. [0003] Especially for sand content greater than 80Kg / m 3 For low-flow and high-sediment river water, the accumulation of river sand in the upstream is very significant. If only the existing dams are used for interception, the accumulation of river sand in the upst...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the fact that the dam structure disclosed in the prior art cannot effectively discharge the river sand accumulated in the upstream during the process of ensuring drainage, which greatly affects the water storage capacity in the river water, and then affects the water intake effect defects, thereby providing a sand discharge dam

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