Method for researching split ratio and sewage separation ratio and evolution rule thereof of bifurcated channel

A technology of diversion ratio and river channel, which is applied in the fields of total pollutant control, water environmental protection, water ecological restoration, flood control and drainage, and can solve the problem of less research on the diversion ratio of the diversion river channel, and there is no evolution law of the diversion ratio and the diversion ratio. research, etc.

Pending Publication Date: 2022-02-15
HOHAI UNIV
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Problems solved by technology

[0004] Predecessors have studied the diversion ratio of branched rivers, but there are few studies on the polluti

Method used

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  • Method for researching split ratio and sewage separation ratio and evolution rule thereof of bifurcated channel
  • Method for researching split ratio and sewage separation ratio and evolution rule thereof of bifurcated channel
  • Method for researching split ratio and sewage separation ratio and evolution rule thereof of bifurcated channel

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Embodiment Construction

[0039] Next, the present invention will be further described in detail with respect to the application example of the method in the Qinhuai River Basin in Nanjing City, Jiangsu Province, that is, the research on the diversion ratio and pollution ratio and their evolution laws of the Outer Qinhuai River and Qinhuai New River, including the following steps.

[0040] Step 1, the investigation of the hydrological information of the Qinhuai River Basin, including the following two aspects of information: 1. The situation of the river network and the channel section of the Qinhuai River Basin, 2. The location of the water level station, flow station and rainfall station in the branched river region location, see figure 1 , Sections D-A and D-B in the figure are the two downstream channels of the branched channel, 3. The water level data of the water level station in the branched channel area, the flow data of the flow station and the yearly and daily rainfall data of the rainfall sta...

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Abstract

The invention discloses a method for researching the split ratio and the sewage separation ratio and the evolution rule thereof of a bifurcated channel. The method comprises the following steps: surveying hydrological information of a drainage basin where the bifurcated channel is located; calculating the river flow of the drainage basin under different assurance rates; constructing a water environment mathematical model; analyzing a split ratio rule of the bifurcated channel; analyzing a sewage separation ratio rule of the bifurcated channel; and analyzing the evolution rule of the split ratio and the pollutant separation ratio of the bifurcated channel. The invention provides a research method for analyzing the splitting ratio and the sewage separation ratio and the evolution rule thereof of a bifurcated channel, aiming at the current situation that the current research on the sewage separation ratio, the splitting ratio and the sewage separation ratio evolution rule of the bifurcated channel is insufficient, and a scientific basis is provided for formulating environmental management policies such as flood control and drainage, ecological water supplementation, total pollutant amount control, water environment protection and water ecological restoration.

Description

technical field [0001] The invention relates to the fields of flood control and drainage, total amount control of pollutants, water environment protection, water ecological restoration and the like, in particular a research method for studying the diversion ratio and pollution ratio of branched rivers and the evolution relationship between them. Background technique [0002] The branched channel is one of the plain river landforms. The river bed is divided by mid-banks and sandbars, just like the main trunk and branches of a tree. The main trunk is the mainstream, and the two branches are branched streams. The ratio refers to the percentage of the flow of a branch river to the flow of the main river. The pollutant separation ratio refers to the percentage of a certain pollutant flux in the branch river to the pollutant flux in the main stream. [0003] The research on the diversion ratio and pollution ratio of branched rivers and their evolution rules is an important part a...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/26G06F30/20G06F113/08
CPCG06Q10/063G06Q50/26G06F30/20G06F2113/08Y02A10/40Y02A20/152
Inventor 宋为威季宇昂廖子莹
Owner HOHAI UNIV
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