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Method for determining low-influence development construction sequences of plots in sponge city construction

A low-impact development, sponge city technology, applied in the field of water resources utilization, to achieve the effect of comprehensive simplicity, easy promotion and use, and objective results

Pending Publication Date: 2018-09-28
OCEAN UNIV OF CHINA
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Problems solved by technology

[0004] Aiming at the deficiencies of the existing sponge city construction planning, the present invention proposes a method for determining the low-impact development and construction timing of each block in the sponge city construction, and calculates the water sensitivity index by comprehensively considering different impact factors, so as to realize the control of the various areas in the sponge city construction. Determination of the construction sequence of block low-impact development, the results are objective and universal

Method used

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  • Method for determining low-influence development construction sequences of plots in sponge city construction

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Embodiment Construction

[0021] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] Such as figure 1 As shown, the method for determining the timing sequence of low-impact development and construction of each block in the construction of the sponge city in this embodiment specifically includes the following processes:

[0023] S101. Extraction and division of catchment area plots;

[0024] In this embodiment, it is required to identify a raster image with a high pixel resolution to complete the extraction and division of the water catchment area, and then supplement it with on-site investigation and correction, and finally extract the water catchment area according to different land use types. Common types of soil use include buildings and communities, industrial land, urban roads, green spaces, open spaces, water systems, squares, cultivated land, etc.;

[0025] S102, calculating n kinds of parameter values;

[002...

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Abstract

The invention discloses a method for determining low-influence development construction sequences of plots in sponge city construction. According to the method, a hydrological sensitive index (Lambda)is put forward to determine a construction sequence of a low-influence development measure of each plot. The hydrological sensitive index indicates ability, easy to generate runoff, of the plot in awater collection area. If the value of (Lambda) is greater, the plot is easier to generate runoff, and priority of the low-influence development construction of the plot is more meaningful. In other words, if the area-perimeter ratio, gradient, waterproof area ratio, runoff width and runoff coefficient of the plot are greater, the soil saturated hydraulic conductivity and soil layer thickness aresmaller, and the effect of the plot after the low-influence development construction is more remarkably. Finally, practical conditions of plots are inspected by combining the site, and the sorting isscientifically adjusted by combining a practical operability principle and an economy principle of each low-influence development measure.

Description

technical field [0001] The invention belongs to the technical field of water resources utilization, and specifically relates to a method for determining the low-impact development and construction sequence of each block in the construction of the sponge city during the construction of the sponge city. Background technique [0002] With the continuous advancement of my country's urbanization process, the original green space and farmland with good water permeability are replaced by impervious ground such as hardened roads and squares. The increase in the coverage of impervious ground has caused a series of urban water environment problems, among which the most prominent It is the urban rainwater flood disaster and the shortage of water resources. In order to solve the problems of urban stormwater disasters and water shortages, drawing on the research of LID (Low Impact Development) in the United States and SUDS (Sustainable Drainage System) in the United Kingdom, my country ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/08
CPCG06Q10/06316G06Q50/08
Inventor 王琳王晋
Owner OCEAN UNIV OF CHINA
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