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Urban inland inundation modeling prediction method

A technology of urban waterlogging and prediction methods, applied in the direction of prediction, instruments, data processing applications, etc., can solve problems that cannot be prevented in time, and achieve the effect of great reference value and minus data processing

Active Publication Date: 2017-05-31
HEFEI UNIV
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Problems solved by technology

[0005] Aiming at the problem existing in the prior art that urban waterlogging cannot be prevented in time before it occurs, the purpose of the present invention is to provide a method for modeling and predicting urban waterlogging so as to predict the occurrence of urban waterlogging in advance

Method used

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  • Urban inland inundation modeling prediction method

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Embodiment

[0034] see figure 1 , a method for modeling and predicting urban waterlogging, comprising the following steps:

[0035] A method for modeling and predicting urban waterlogging, comprising the following steps:

[0036] (1) Construct a model, through the urban water circulation system, and use the white box test method to establish an urban waterlogging model. The model is as follows:

[0037] M=H-Q;

[0038] Among them: M is the amount of accumulated water in the city, which refers to the difference between the urban precipitation and the urban water removal;

[0039] H is the urban precipitation in a certain area per unit time;

[0040] Q is the amount of urban dewatering, which refers to the amount of water absorbed by vegetation and soil, drainage pipe network system and surface flow;

[0041] (2) Determine the time period of the occurrence of waterlogging, and query the peak period of the city's annual precipitation. During the peak period of the city's precipitation, t...

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Abstract

The invention discloses an urban inland inundation modeling prediction method which comprises the following steps: acquiring probability of urban inland inundation by using a modeling method; according to the situation that urban inland inundation is caused as an urban water drainage amount is smaller than an urban precipitation amount because of natural situations, respectively calculating the urban water drainage amount and the urban precipitation amount in a symbolic-graphic combination mode; converting the urban water drainage amount and the urban precipitation amount into an urban water drainage effect diagram and an urban precipitation effect diagram by using software, and overlapping the diagrams, so as to obtain an urban ponding effect diagram. By adopting the processing mode, massive tedious data processing is reduced, urban landforms in practical situations can be taken into account, and the latest urban water drainage situations can be acquired, so that great reference values can be made, and urban inland inundation can be predicted by analyzing the urban ponding effect diagram.

Description

technical field [0001] The invention relates to the field of urban waterlogging modeling, in particular to a method for modeling and predicting urban waterlogging. Background technique [0002] In recent years, many cities in our country have been frequently hit by heavy rains, causing serious urban waterlogging, and the phenomenon of "every rain will cause waterlogging, and waterlogging will lead to paralysis". The frequent occurrence of urban waterlogging will not only lead to traffic paralysis, but also cause urban hydropower, Communication and underground cable failures cause flooding of markets, warehouses, factory buildings and people's property, and even personal casualties, causing social order chaos and panic; factors that affect urban waterlogging include: vegetation coverage, terrain height and rainfall, usually Under normal circumstances, the lower the vegetation coverage, the lower the terrain, and the higher the rainfall, the greater the possibility of urban wa...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/26
CPCG06Q10/04G06Q50/26
Inventor 吴文胜张林松魏志明张文灏严冬冬吴旺杰吴志康余月琴
Owner HEFEI UNIV
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