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A Design and Analysis Method of Urban Waterlogging Removal System

A design analysis, urban waterlogging technology, applied in design optimization/simulation, calculation, instrumentation, etc., can solve problems such as low efficiency, heavy workload, and rarely used to guide design work, and achieve the effect of ensuring waterlogging safety

Active Publication Date: 2020-08-11
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method is to couple the underground drainage pipe network with the two-dimensional model for calculation, but the modeling process and calculation program are relatively complicated, and the workload of system adjustment and optimization is large and the efficiency is low
Therefore, traditional methods are generally used for characteristic analysis and layout optimization of existing planning schemes, and are rarely used to guide early design work

Method used

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  • A Design and Analysis Method of Urban Waterlogging Removal System
  • A Design and Analysis Method of Urban Waterlogging Removal System
  • A Design and Analysis Method of Urban Waterlogging Removal System

Examples

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Embodiment

[0033] This embodiment is a design and analysis method of an urban waterlogging removal system. The principle of this embodiment is to evaluate waterlogging-prone points according to a two-dimensional plane calculation model. According to the location where waterlogging is prone to occur, the drainage source item with a negative flow rate is configured. When the drainage volume is less than the drainage capacity, the drainage volume is equal to the drainage volume. When the discharge capacity is greater than the drainage capacity, the rainfall cannot be removed in time, and water accumulation occurs. The size and location of drainage source items are optimized so that the drainage capacity of the entire calculation domain meets the specification requirements. According to the drainage source item, determine the arrangement of rainwater outlets and electric pumps and the drainage scheme. The method simplifies the design optimization of the waterlogging removal system into the...

example

[0063] The calculation example is a project where roads and railways cross in a certain city. The node to be handed over crosses the two railways in the form of a sunken overpass. Therefore, when urban rainstorms occur, water is prone to accumulate under the bridge. If the water depth is too large and the water accumulation lasts too long, urban waterlogging will occur, causing secondary social problems such as traffic congestion and disorder. Therefore, a reasonable planning of the drainage system is required.

[0064] 1. Determine the computational domain:

[0065] According to the situation of surface production and confluence, the determined calculation domain is as follows: figure 2 shown. Among them, two parallel railways (railway 1, railway 2) and a road (road 2) parallel to the two railways, and a road (road 1) that crosses the two railways and crosses the road 2, The computational domain is a rectangle.

[0066] 2. Basic files and related parameter settings:

[...

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Abstract

The invention relates to a design analysis method of an urban inland inundation drainage system. The method comprises the following steps: determination of a computational domain and a control equation; basic document and relevant parameter setting; inland inundation water accumulation point analysis; design of a water drainage source item; design of inland inundation calculation of a scheme; optimization of the water drainage source item; optimization of the inland inundation calculation of the scheme; judgment; and determination of an inland inundation drainage scheme. According to the method, the inland inundation drainage system is optimized in design, the size of the system is simplified to be equal to that of the water drainage source item, and the position is optimized; the arrangement of a rainwater hole and a water pump is determined according to the water drainage source item so as to realize that supply is determined by requirement, which is a great improvement on setting out an inland inundation drainage scheme and then performing inland inundation drainage safety analysis and optimization in the past, technical guidance and solution are provided for design, analysis and optimization of the inland inundation drainage system, and the inland inundation safety on an urban road is guaranteed.

Description

technical field [0001] The invention relates to a design and analysis method for an urban waterlogging removal system, which is a hydrological calculation method and a method for analyzing and calculating an urban drainage system. Background technique [0002] As the global climate changes, extreme weather increases, and urban rainstorms increase in frequency and intensity. On the other hand, the development of urbanization has resulted in hardened road surfaces, more buildings, and reduced green areas and permeable areas. Therefore, the city's ability to store rainfall has weakened, and the runoff duration has shortened and its intensity has increased. Therefore, the problem of urban waterlogging caused by heavy rainfall and low drainage capacity is becoming more and more obvious, which can easily cause urban traffic jams, short-term social chaos, and even cause public health safety problems. Therefore, urban drainage is an important part of urban construction and developme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06Q10/04G06Q10/06G06Q50/26G06F111/06
CPCG06F30/20G06F2111/06G06Q10/04G06Q10/0639G06Q50/26
Inventor 郭新蕾李甲振王涛付辉郭永鑫黄伟马慧敏马朝猛
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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