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Method for determining flood drainage planning standard of flood drainage area and application thereof

A technology for determining methods and standards, applied in the field of determining standards for waterlogging drainage planning in waterlogging areas, can solve problems such as failure to reflect the common impact of waterlogging disasters, inability to correctly measure the probability of waterlogging disasters, etc.

Pending Publication Date: 2021-01-01
WUHAN UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

Therefore, the return period standard considering a single disaster-causing factor does not reflect the joint impact of multiple disaster-causing factors on waterlogging, and cannot correctly measure the probability of waterlogging
At present, there are no relevant reports on drainage standards that can reflect the combined effects of multiple disaster-causing factors

Method used

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  • Method for determining flood drainage planning standard of flood drainage area and application thereof
  • Method for determining flood drainage planning standard of flood drainage area and application thereof
  • Method for determining flood drainage planning standard of flood drainage area and application thereof

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in combination with the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0040] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0041] The present invention will be further described below in conjunction with specific examples, but not as a limitation of the present invention.

[0042] like figure 1 As shown, the present invention provides a method for determining the standard of waterlogging drainage planning in the drainage area. I...

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Abstract

The invention provides a method for determining a flood drainage planning standard of a flood drainage area. The method comprises the steps of: screening out multiple hydrological disaster-causing factors in the flood drainage planning area; establishing waterlogging risk rates of various hydrological disaster-causing factors; performing frequency scheduling analysis on the annual maximum magnitude of various hydrological disaster-causing factors; calculating a first joint distribution probability and a second joint distribution probability of various magnitude combinations of various hydrological disaster-causing factors; and determining an allowable waterlogging recurrence period N according to the actual situation of the waterlogging drainage area, calculating an allowable waterloggingrisk rate according to the allowable waterlogging recurrence period N, finding the closest magnitude combination of the hydrological disaster-causing factors from the multiple second joint distribution probabilities in the step S5 according to the allowable waterlogging risk rate, and taking the magnitude combination as a flood drainage planning design standard of the flood drainage area. The invention further provides application of the method. According to the invention, the common influence of various disaster-causing factors on the waterlogging disaster can be reflected, the contribution of various disaster-causing factors to the waterlogging disaster is more comprehensively considered, and the method better conforms to the actual situation of the waterlogging disaster.

Description

technical field [0001] The invention belongs to the technical field of waterlogging planning in water conservancy projects, and in particular relates to a method for determining a waterlogging planning standard in a waterlogging area and an application thereof. Background technique [0002] The occurrence of waterlogging does not simply depend on a certain hydrological extreme value, but is often the result of several hydrological loads acting at the same time reaching or exceeding a certain limit level as a whole. For a long time, most of the relevant codes in my country have stipulated that "the design standard for waterlogging control should generally be based on the fact that rainstorms with a certain recurrence period in the flooded area will not be flooded." This method of taking the return period of a rainstorm exceeding a certain level as the drainage standard essentially only considers one disaster-causing factor of waterlogging—rainstorm. In fact, the occurrence o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F111/08G06F119/02
CPCG06F30/20G06F2111/08G06F2119/02
Inventor 谢华周薛玲梁俊
Owner WUHAN UNIV
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