Rapid multi-target engineering optimization design method for complex rainwater pipe network

A technology of engineering optimization and design method, applied in the sewer system, calculation, sewage removal and other directions, can solve the problems of inefficient algorithm, difficult to practical application, etc., to improve optimization efficiency, good promotion and practical engineering application value, save The effect of the calculation process

Active Publication Date: 2018-11-16
ZHEJIANG UNIV
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Problems solved by technology

If a computer (2.9GHz Dell PC (InterR)) is used to iterate the objective function 100,000 times based on the SWMM drainage pipe network hydraulic model (that is, to call the rainwater pipe network hydraulic model 100,000 times), each operation takes 7 seconds, and a total of 194.4 hours (approx. 8 days), such an inefficient optimization calculation makes it difficult for the algorithm to be practically applied

Method used

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  • Rapid multi-target engineering optimization design method for complex rainwater pipe network
  • Rapid multi-target engineering optimization design method for complex rainwater pipe network
  • Rapid multi-target engineering optimization design method for complex rainwater pipe network

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Embodiment Construction

[0026] see figure 2 , the specific implementation steps of the present invention are as follows:

[0027] (1) Select the corresponding rainstorm intensity formula according to the area where the rainwater pipe network is located The parameters A=57.694, C=0.93, b=31.546, n=1.008, t=t 1 +t 2 , t 1 is the surface water collection time, take t 1 = 6min, t 2 is the prevailing time of rainwater in the pipe. Given the rainstorm return period P according to the design requirements, in this case P=5, and select the corresponding typical rainfall process curve from the rainfall historical record data, such as figure 1 shown.

[0028] (2) Collect relevant information of the drainage area and establish a rainwater drainage model. Collect land use information, pipe network parameter information, discharge outlet boundary conditions, historical rainfall data and inspection well liquid level data in drainage areas. In the drainage modeling software, the pipe network layout is det...

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Abstract

The invention provides a rapid multi-target engineering optimization design method for a complex rainwater pipe network. The rapid multi-target engineering optimization design method for the complex rainwater pipe network comprises the steps that a rainstorm intensity formula and parameters are selected, the storm recurrence period is given, and a typical rainfall process curve is selected; a rainwater pipe network hydraulic model is built, and the rainfall process curve is imported into a rainfall module in the model; a fullness solution set is determined; the pipe diameter of the rainwater pipe network is calculated, the pipe diameter is adjusted and calculated, an initial optimization scheme set of the rainwater pipe network is determined, a multi-target optimization model of the rainwater pipe network is built, and an optimization algorithm is started to rapidly acquire a Pareto optimization solution set of the rainwater pipe network. The rapid multi-target engineering optimizationdesign method for the complex rainwater pipe network has the original creativity, is an important complement for the study field of the optimization design of the rainwater pipe network and can provide an important technical support for urban water logging prevention and control and sponge city construction, and therefore the promotion and practical engineering application value is good.

Description

technical field [0001] The invention relates to the fields of municipal engineering and urban rainwater pipe network. Background technique [0002] In recent years, waterlogging has occurred in many cities across the country, leading to problems such as urban traffic paralysis and power supply interruptions, which have had a huge impact on people's daily production and social economy. There are many factors that cause urban waterlogging, such as climate change, hardening of the underlying surface due to urbanization, and downstream water level jacking. The unreasonable design of the rainwater pipe network is also an important factor in urban waterlogging. For example, the design standard of rainwater pipes is low, and the rainwater cannot be discharged within the effective time, causing urban waterlogging disasters. Therefore, the rational design of rainwater pipe network is of great significance for the effective prevention and control of urban waterlogging. [0003] For ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F1/00E03F3/02G06F17/50
CPCE03F1/00E03F3/02G06F30/18
Inventor 郑飞飞
Owner ZHEJIANG UNIV
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