Rapid drainage type water storage overflow dam

Abstract

The invention relates to a flood protection and water storage dam, in particular to a rapid drainage type water storage overflow dam. The rapid drainage type water storage overflow dam comprises a dam body; the top of the dam body is fixedly provided with an overflow groove; the overflow groove comprises more than two groove bodies which are distributed along the left direction and the right direction; a drainage groove is formed between the two adjacent groove bodies; one sides of the groove bodies, which are close to the corresponding drainage grooves, are provided with overflow walls which extend along the front and back directions. According to the rapid drainage type water storage overflow dam, the top of the dam body is fixedly provided with the overflow groove, the overflow groove comprises the at least two groove bodies which are distributed along the left and right direction, the drainage groove is formed between the adjacent two groove bodies, the one sides of the groove bodies, which are close to the corresponding drainage grooves, are provided with the overflow walls which extend along the front and back directions, the drainage width of the water storage overflow dam is increased, water-carrying capacity can be shared, and the water storage water level fluctuation is reduced, and maximum water storage is achieved, so that the rapid drainage type water storage overflow dam quickens the flood discharge speed of the water storage dam and increases the water storage capacity of the water storage dam.

Description

technical field [0001] The invention relates to a flood control and water storage dam, in particular to a fast-discharging water storage and overflow dam. Background technique [0002] Water is the source of life. Although 70% of the earth is covered by water, as far as the fresh water resources needed by human beings are concerned, the water source is still very scarce. In ancient times, people have begun to realize the importance of rational water use, and dams have a history of thousands of years in human civilization. [0003] A dam refers to a water-retaining structure that intercepts the water flow of a river channel to raise the water level or regulate the flow. It can form a reservoir, raise the water level, adjust the runoff, and concentrate the water head. It is used for flood control, water supply, irrigation, hydropower generation, and improvement of shipping. The earliest recorded dam in history is the Kausaishi dry masonry dam built by the Egyptians on the Nil...

AI Technical Summary

Problems solved by technology

For storage dams with additional flood discharge and overcurrent facilities, because the flood discharge speed of the flood discharge and overcurrent setting is limited, its carrying capacity must be considered and the capacity of the reservoir, etc. must be designed according to its carrying capacity, otherwise once there is a sudden increase in water volume If the flood is not discharged in time, the water level will rise sharply, which will cause the submergence of upstream cities or villages, which is extremely dangerous. In addition, in the case of insufficient drainage, the storage dam will be subject to a huge impact for a long time, and may collapse. ACCIDENT

Compared with the retaining dam with additional flood discharge and overflow facilities, the overflow dam drains through the front line, and its drainage speed is relatively fast, but due to the reality of its length, its drainage speed is still unsatisfactory, which has caused The water storage capacity is limited. At the same time, the storage dam with the above structure will cause a large number of aquatic animals to be lost during the drainage process, which is not suitable for the needs of aquaculture.

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