Unidirectional flow project for seawater in high-level downflow weirs

Abstract

The invention discloses a unidirectional flow project for seawater in high-level downflow weirs, which comprises the subproject of building anti-surge dams and high-level downflow weirs at coastal mud flats and shallow waters along the coast so as to form a tidewater-accommodating reservoir. The crest level of the high-level downflow weir is lower than the local flood line in the process of tide rising and higher than the local low-water line in the process of tide falling; the high-level downflow weir is a continuous wall made of reinforced concrete slabs or in other dam structures; the tidewater-accommodating reservoir is formed by encircling the high-level downflow weir with the anti-surge dam and is provided with a water intake gate or a water intake culvert which is communicated with a main water delivery canal, and the main water delivery canal is communicated with branch canals; a main drainage canal of the anti-surge dam is provided with a drainage sluice; and the two sides of the high-level downflow weir are respectively provided with a riprap revetment. The project disclosed by the invention has the characteristics of obvious energy conservation effect, simple operation management, capability of improving environment and creating conditions for tour and sightseeing, and the like; and meanwhile, the project disclosed by the invention is widely applied to the engineering of reclaiming land from the sea, sea farming engineering, seawater lifting utilization projects, environmental reconstruction engineering and coastal urban construction engineering at coastal mud flats and shallow waters along the coast.

Description

technical field [0001] The invention relates to land reclamation projects in coastal tidal flats and shallow waters, mariculture projects, seawater lifting and utilization projects, environmental renovation projects, coastal city construction projects, and in particular to a high-level overflow weir seawater unidirectional flow project. Background technique [0002] On sandy and muddy coasts, the use of coastal tidal flats and shallow waters to develop mariculture, reclamation of sea land, and construction of coastal cities generally faces the problem of difficult water exchange. In particular, the existing technology of using tidal flats for mariculture is to build water pumping stations, relying on electric pumps to lift water to exchange water in mariculture areas. This method can work to a certain extent, but there are the following shortcomings or deficiencies: ① It is labor-intensive, time-consuming and energy-consuming; ② It is necessary to build a water pumping stati...

AI Technical Summary

Problems solved by technology

In particular, the existing technology of using tidal flats for mariculture is to build water pumping stations, relying on electric pumps to lift water to exchange water in mariculture areas. This method can work to a certain extent, but there are the following shortcomings or deficiencies: ①It is labor-intensive, time-consuming and energy-consuming; ②It is necessary to build a water pumping station, and the purchase and installation of equipment, operation management, and equipment maintenance are complicated; ③A large amount of electric energy is consumed, and the cost of breeding is high

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