Permeable overflow dam combining functions of water level control and water purification

Abstract

The invention provides a permeable overflow dam combining functions of water level control and water purification, which comprises a solid dam body, a permeable dam body and water purifying media arranged in the permeable dam body, wherein the solid dam body is in a water-proof solid structure formed by casting concrete or reinforced concrete, and the height of the dam top of the solid dam body is the height of a higher water level in the lowest water level required by a river channel ecological system or the lowest water level required by river channel landscape environment; the permeable dam body is a lattice fence formed by casting concrete or reinforced concrete, a plurality of reinforced concrete partition walls are cast in the permeable dam body along a river width direction, a plurality of no-fines concrete walls are cast in the permeable dam body along a water flow direction, and the height of the dam top of the permeable dam body is higher than the designed normal water level of the overflow dam and is lower than that of the designed flood level of a river channel; and the water purifying media are pebbles, vermiculites, zeolites or spherical water purifying fillers. The invention not only can meet the requirement of raising the water level without influencing the flood discharge capacity but also can effectively purify water and improve river water environment quality.

Description

technical field [0001] The invention relates to a permeable overflow dam facility with combined functions of water level control and water quality purification, in particular to a permeable overflow dam capable of intercepting and purifying pollutants in river water bodies. Background technique [0002] Before the present invention, the existing overflow dams were mainly (reinforced) concrete or masonry-built solid dams for storing water or raising the water level. To meet the requirements of irrigation, water supply, landscape environment, etc., when the flood comes, a large amount of flood water overflows from the dam and is discharged downstream, which is a typical water conservancy project. This type of overflow dam has a very significant effect on river water regulation and water level elevation, but has little effect on the adsorption and retention of pollutants in the water body, and its ability to purify river water pollutants is also very limited. [0003] At prese...

AI Technical Summary

Problems solved by technology

This type of overflow dam has a very significant effect on river water regulation and water level elevation, but has little effect on the adsorption and retention of pollutants in the water body, and its ability to purify river water pollutants is also very limited.

[0003] At present, there is no overflow dam that not only meets the hydraulic function requirements of water level control, but also has the ecological function requirements of purifying water quality and improving the water environment.

The concept, structural system and application examples of this new type of permeable overflow dam combined with water level control and water purification functions have not been found in domestic and foreign literature.

Images