Plain area urban river network water circulation regulation and control method based on ecological restoration target

A technology of ecological restoration and water circulation, applied in the direction of water resources protection, general water supply conservation, instruments, etc., can solve problems such as inapplicability, achieve the effect of strengthening self-purification ability, enhancing annual purification function, and reducing the scale of water diversion

CN111027264AActive Publication Date: 2020-04-17安徽省(水利部淮河水利委员会)水利科学研究院(安徽省水利工程质量检测中心站)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-04-17

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Abstract

The invention relates to a plain area urban river network water circulation regulation and control method based on an ecological restoration target, and the method comprises the steps: building a water volume-hydrodynamic force-water quality-water ecological index system through the investigation of the basic conditions of an urban river network and taking the aquatic organism diversity as the basic target of the urban river network water ecological restoration; constructing a river network hydraulics-water quality-water ecology refined simulation model, optimizing a flowing water engineeringregulation and control scheme by utilizing a hydrodynamic force-water quality simulation result of each scene scheme, constructing an urban river network large circulation system, and adjusting a section structure of a local end river segment to realize local small circulation; and comprehensively evaluating the flood control safety, the environment improvement benefit and the influence on the water supply source of the regulation and control scheme. Under an existing engineering system, a flowing water source and kinetic energy of the flowing water source are fully utilized, dispatching of hydraulic engineering such as gates and pumps serves as a main way, ordered movement of inland river water flow is promoted, and the inland river self-cleaning capacity is recovered and improved.
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Description

technical field

[0001] The invention relates to a method for regulating and controlling the water cycle of urban river networks in plain areas based on ecological restoration objectives, and belongs to the technical fields of black and odorous river control and water conservancy engineering. Background technique

[0002] "Ask how clear the canal is? For the source of flowing water." Insufficient source water, poor source water quality, and poor hydrodynamic conditions are the main reasons for the deterioration of water environment quality and the degradation of water ecosystems in urban rivers in plain areas. In terms of engineering, in response to the problem of insufficient source water in the urban inland water network in the plain area, a large number of ecological water replenishment practices for urban inland rivers have been carried out, such as the Suzhou City Living Water Artesian Project. Running water is the soul of long-term management of urban water bodies. Run...

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] The method for controlling the water cycle of the urban river network in the plain area based on the ecological restoration target, its operation process is shown in figure 1 , including the following steps:

[0028] S1: Survey on basic situation of urban river network. Investigate the hydrodynamic conditions of the river network, including flow direction, flow velocity, water surface slope, etc., investigate and review the longitudinal section and cross section of the river network, culverts, sluices, pumping stations and other projects, the location of the outlet of the river network alon...