Deep groove-arc dam

Abstract

The invention belongs to the field of hydraulic structures, and discloses a deep groove-arc dam. The deep groove-arc dam is characterized in that arc dams and deep grooves are taken as core structures, and are organically combined with U-shaped dams, submerged dams and aquatic plants; the deep groove-arc dam is applied to a lake-entering estuary area; the arc dams are mainly distributed on the south side and / or the north side of an estuary, and can play roles in restraining and guiding water flow, scouring sediment and keeping the water depth of a lake outlet; the deep grooves comprise the main grooves distributed in the middle of the estuary and south grooves and / or north grooves distributed in the south side and the north side of the estuary, and play roles in promoting the sedimentation of the sediment and purifying water; the U-shaped dams and the submerged dams are distributed in a staggered mode, and play a role in intercepting the sediment; and the aquatic plants are planted on the arc-shaped dams, the U-shaped dams and the submerged dams, can purify the water, and play important roles in diverting and guiding water flow, promoting the sedimentation of suspended solids in water and intercepting pollutants. The deep groove-arc dam has the advantages of being easy to operate, low in construction cost, environment-friendly and the like, and can generate remarkable economic benefits and social benefits in the technical field of river diversion and the field of water purification.

Description

technical field [0001] The invention belongs to the field of hydraulic structures, and in particular relates to a deep groove-arc dam structure, which is applied to the diversion and purification process of rivers entering lakes, and can play the role of diversion and promotion of sinking and purification. Background technique [0002] Due to the large flow of water in the estuary area, the water flow carries a large amount of sediment, which is easy to form an alluvial fan. At the same time, the river water carries pollutants such as nitrogen and phosphorus, which has a great impact on the water environment of the estuary area and receiving water bodies. Therefore, it is necessary to set up diversion and sedimentation promotion purification facilities in the estuary area. [0003] At present, my country has not yet formed a complete estuary diversion to promote sedimentation purification technology system. The existing diversion dams are mainly used to change the flow veloc...

AI Technical Summary

Problems solved by technology

[0006] The technical problems solved by the present invention are: when the river water flows into the lake, the water flow in the estuary area concentrates on the river bank, and the river bank is easily damaged; the water body enters a large area of ​​water area, resulting in a slow flow effect, and the sediment is easy to deposit to form an alluvial fan; and water body pollutants Due to the slow flow deposited in the estuary area, problems such as increasing the difficulty of governance, the present invention provides a deep groove-arc dam structure, which organically combines the arc dam, deep groove, U-shaped dam, submerged dam and aquatic plants, It not only plays the role of water diversion, but also achieves the purpose of converging water to attack sand and maintaining the water depth of the lake mouth. At the same time, it can effectively intercept sediment, promote sediment settlement and purify water quality, realizing the double efficiency of hydraulic structures and environmental protection structures. Both the field of diversion technology and the field of water purification have good results

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