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Rainwater low impact development planning method and device

A low-impact development, rainwater technology, applied in the field of rainwater engineering planning, can solve the problems of planning analysis without mathematical modeling of planning areas, inability to optimize and adjust rainwater facilities, and simulation planning of rainwater facilities.

Inactive Publication Date: 2015-12-23
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the planning analysis of the existing planning area without mathematical modeling in the prior art, and the simulation planning of the rainwater facilities in the planning area is not carried out, so that it cannot analyze the rainwater in the planning area. To make corresponding optimization and adjustment of facilities, provide a planning method and device for rainwater low-impact development

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Embodiment Construction

[0033] The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples.

[0034] This embodiment provides a planning method for rainwater low-impact development, such as figure 1 shown, including the following steps:

[0035] Step 101, obtaining the annual rainwater runoff coefficient of each plot in the planning area and the runoff peak value of the planning area;

[0036] Wherein, the influencing factors of the plot include one or more of soil, shrubs, roads, water areas and houses, and the rainwater facilities in the planning area include ecological grass ditch, sunken green space, rain garden, green roof, underground Infiltration storage, permeable pavement, rainwater storage tank.

[0037] The runoff coefficient refers to the ratio of the total runoff (mm) to the precipitation (mm) in a certain catchment area, the ratio is between 0 and 1, and the annual rainwater runoff coefficient refers to...

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Abstract

The invention discloses a rainwater low impact development (LID) planning method and a rainwater LID planning device. The rainwater LID planning method comprises the steps of: acquiring annual rainwater runoff coefficients of plots in a planning area and a runoff peak value of the planning area; planning rainwater facilities as an impact factor of each plot into the plot; calculating annual rainwater runoff coefficients of the plots added with the rainwater facilities and a runoff peak value of the planning area; judging whether the annual rainwater runoff coefficients are within a first preset range, and judging whether the runoff peak value is within a second preset range, if so, optimizing layout of the rainwater facilities in the planning area by adopting a rainwater facility optimization algorithm, otherwise, adjusting layout of the rainwater facilities in the planning area by adopting a rainwater facility adjustment algorithm. The rainwater LID planning method and the rainwater LID planning device achieve the modeling of a planning scheme after adding the rainwater facilities, can be used for planning the rainwater facilities in the planning area, and can optimize and adjust the layout of the rainwater facilities in the planning area according to the runoff coefficients of the plots and the runoff peak value of the planning area.

Description

technical field [0001] The invention relates to the technical field of rainwater engineering planning, in particular to a planning method and device for rainwater low-impact development. Background technique [0002] Low-impact development (LID) is a storm management and non-point source pollution treatment technology, which aims to control the runoff and pollution generated by storms through decentralized, small-scale source control, so that the development area is as close to the natural environment as possible. hydrological cycle. However, in the existing technology, there is no mathematical modeling analysis for low-impact rainwater development, and simulated planning for stormwater facilities in the planning area, so that the existing low-impact rainwater development scheme cannot be implemented through model analysis for the existing planning area In the follow-up construction planning, it is impossible to optimize and adjust the rainwater facilities in the planning a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06
Inventor 雷洪犇陈红缨
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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