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Hydraulic model-based optimum design method for urban underpass drainage systems

A technology of drainage system and hydraulic model, applied in the direction of design optimization/simulation, calculation, special data processing application, etc., can solve the problems of incomplete consideration of factors, difficulty in guaranteeing drainage effect, inaccurate drainage system research model, etc., to achieve increased Accuracy, improving urban waterlogging and disaster prevention capabilities, and improving scientific and safety effects

Inactive Publication Date: 2018-07-24
SHANGHAI MUNICIPAL TRANSPORTATION DESIGN INST
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Problems solved by technology

However, due to incomplete consideration of factors in the current research on the drainage system under the urban tunnel, the research model of the drainage system is inaccurate, and it is difficult to ensure its optimal drainage effect

Method used

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  • Hydraulic model-based optimum design method for urban underpass drainage systems
  • Hydraulic model-based optimum design method for urban underpass drainage systems
  • Hydraulic model-based optimum design method for urban underpass drainage systems

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Embodiment Construction

[0035] In order to make it easy to understand the technical means, creative features, goals and effects achieved by the present invention, the following examples are combined with the appended figure 1 to attach Image 6 The technical solutions provided by the present invention are described in detail, but the following content is not intended as a limitation of the present invention.

[0036] figure 1 It is a flow chart of an embodiment of an optimal design method for an urban underpass drainage system based on a hydraulic model of the present invention. Such as figure 1 As shown, the hydraulic model-based optimal design method for urban underpass drainage system provided in this embodiment includes the following steps:

[0037] The first step is to build a DEM model;

[0038] According to the guidance of the "Outdoor Drainage Design Code", "measures should be taken at both ends of the approach road of the underpass type intersection to control the catchment area and redu...

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Abstract

The invention provides a hydraulic model-based optimum design method for urban underpass drainage systems, and belongs to the technical field of municipal engineering technologies and geographic information system technologies. The hydraulic model-based optimum design method for urban underpass drainage systems comprises the following steps of: 1, constructing a digital elevation model (DEM); 2, constructing a hydraulic model, and carrying out two-dimensional hydraulic simulation under different working conditions; 3, carrying out drainage outlet safety evaluation and pumping station working condition check; and 4, carrying out optimum design on an underpass drainage system. According to the method, high-area DEMs and low-area DEMs are accurate, and the correctness of two-dimensional overland flow simulation is improved, so that urban underpass drainage systems are optimized, the design of the drainage systems is guided, urban inland inundation disasters of underpass nodes are decreased, and the normal operation of urban traffic and safety of human life and properties are ensured.

Description

technical field [0001] The invention relates to the technical fields of municipal engineering technology and geographic information system technology, in particular to a hydraulic model-based optimization design method for urban underground tunnel drainage system. Background technique [0002] Urban underpasses are widely used as the main structure of urban road traffic, which realizes the space utilization of urban roads and is more rational. [0003] Due to the impact of extreme weather, urban waterlogging disasters in my country have become increasingly serious in recent years, and because the underground tunnels in the city form closed waterlogged depressions, and the longitudinal slope of the road is large, the urban underground tunnels have become the hardest-hit areas of urban waterlogging , Under heavy rainfall conditions, severe water accumulation is very likely to occur, and even cause urban traffic jams. Therefore, the drainage system of underground tunnels in citi...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 牟晋铭
Owner SHANGHAI MUNICIPAL TRANSPORTATION DESIGN INST
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