Urban suitable water surface rate determination method and system based on storage and drainage balance and medium

Abstract

The invention discloses an urban suitable water surface rate determination method and system based on storage and drainage balance and a medium, and belongs to the crossing field of urban inland inundation prevention and control and hydraulic model technologies. The method comprises the following steps: S100, determining a waterlogging prevention and control standard, a tide level recurrence period and a research area feature elevation; s200, carrying out model generalization, wherein the model generalization comprises research area generalization, river channel generalization, regulation and storage water body generalization and drainage mode generalization; s300, setting boundary conditions and model parameters, and operating the model after the model parameters are set; s400, performing model result analysis, if the difference value between the feature elevation of the research area and the simulated highest water level in the river channel meets the preset specification requirement, performing the step S500, and otherwise, returning the width of the river channel is adjusted, and the step S300; and S500, calculating a suitable water surface rate based on the current river channel width. Technical support can be provided for the fields of urban planning and the like, and the scientific rationality of planning is improved.

Description

technical field [0001] The invention relates to the interdisciplinary field of urban waterlogging prevention and hydraulic model technology, in particular to a method, system and medium for determining an urban suitable water surface rate based on storage and drainage balance. Background technique [0002] In recent years, frequent waterlogging disasters have occurred in cities in my country, posing a great threat to the safety of residents' lives and property. In addition to factors such as rapid urbanization, insufficient drainage capacity of rainwater pipe networks, unsound waterlogging prevention and control systems, and climate change, another major reason for the frequent occurrence of waterlogging disasters in cities in China is that the original water areas have been encroached on during the process of urban development. , leading to a substantial reduction in the original rainwater regulation and storage space. Urban waters are an important storage space for rainwa...

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Problems solved by technology

In addition to factors such as rapid urbanization, insufficient drainage capacity of rainwater pipe networks, unsound waterlogging prevention and control systems, and climate change, another major reason for the frequent occurrence of urban waterlogging disasters in my country is that the original water areas have been encroached upon during the process of urban development. , leading to a substantial reduction in the original rainwater regulation and storage space

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