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Pipe network-river coupling model checking characteristic parameter calibration method

A technology of coupling models and characteristic parameters, applied in special data processing applications, design optimization/simulation, etc., can solve problems such as low fixed accuracy, and achieve the effect of improving accuracy

Pending Publication Date: 2020-08-25
SHENZHEN TONGRUI ENVIRONMENTAL PROTECTION WATER SYST ENG
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Problems solved by technology

[0002] The accuracy of parameter calibration of traditional hydrological models is low

Method used

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  • Pipe network-river coupling model checking characteristic parameter calibration method
  • Pipe network-river coupling model checking characteristic parameter calibration method
  • Pipe network-river coupling model checking characteristic parameter calibration method

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Embodiment Construction

[0016] The present invention will be further described below in combination with specific embodiments.

[0017] A pipe network-river coupling model calibration method for checking characteristic parameters based on the five major runoffs of rainfall, land surface, road surface, pipeline and river course, specifically including the following process:

[0018] 1) Rainstorm intensity formula and rainstorm return period: Using the rainfall historical data of a city in the past 50 years, the rainfall characteristics are studied for highly developed urban areas, lowly developed suburban areas, and undeveloped reserve areas.

[0019] Using the synthetic rainfall curve data, design rainfall scenarios according to different return periods, and analyze the waterlogging and overflow conditions in the study area under different return periods, siltation and different boundary conditions. 2) Surface soil characteristics and runoff coefficient selection: use the results of research and deve...

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Abstract

The invention provides a pipe network-river coupling model checking characteristic parameter calibration method. The method comprises the following steps of S1, regional selection on a large-watershedrainstorm intensity formula and a rainstorm recurrence period; S2, zoning selection of surface soil characteristics and runoff coefficients; S3, overflow coupling of a pavement side ditch and a pipeline; S4, a pipeline friction resistance and gradient and inspection well and regulation and storage facility feature processing technology; and S5, tidal riverway and pipe network system characteristics. The hydrological model parameter calibration method has the beneficial effects that rainfall characteristics, surface soil characteristics and runoff coefficients, road surface side ditch and pipeline overflow, pipeline friction resistance, gradient, inspection wells, regulation and storage facility characteristics and tidal riverway and pipe network system characteristics under the large watershed zoning condition are comprehensively considered, and the parameter calibration precision of the hydrological model is improved.

Description

technical field [0001] The invention relates to parameter calibration of a hydrological model, in particular to a method for calibrating characteristic parameters of a pipe network-river coupling model. Background technique [0002] The accuracy of parameter calibration of traditional hydrological models is low. Contents of the invention [0003] In order to solve the problems in the prior art, the present invention provides a method for calibrating characteristic parameters of a pipe network-river coupling model. [0004] The invention provides a method for calibrating characteristic parameters of a pipe network-river coupling model, comprising the following steps: [0005] S1. Rainstorm intensity formula and rainstorm return period; selection methods of several rainstorm models, such as rain gauge rainfall curves in subregions; use satellite cloud images to predict rainfall curves; [0006] S2. Surface soil characteristics and runoff coefficient selection; application ...

Claims

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Application Information

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IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 王荣合刘国庆苗伟波董水业
Owner SHENZHEN TONGRUI ENVIRONMENTAL PROTECTION WATER SYST ENG
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