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Drainage system waterlogging prevention emergency plan making method

A drainage system and emergency plan technology, applied in the direction of climate change adaptation, data processing applications, special data processing applications, etc., can solve problems such as waterlogging risk in rough drainage system flood control capabilities

Pending Publication Date: 2020-12-08
上海市水务规划设计研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The traditional assessment of flood control capacity is usually based on drainage system design standards, which can only roughly judge the flood control capacity of the drainage system and the risk of waterlogging

Method used

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  • Drainage system waterlogging prevention emergency plan making method
  • Drainage system waterlogging prevention emergency plan making method
  • Drainage system waterlogging prevention emergency plan making method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0166] Embodiment 1, constructing the drainage system mathematical model

[0167] The Zhaojiabang and Luban drainage systems are located in the central area of ​​Xuhui District, Shanghai. Both are combined forced drainage systems. The service area of ​​the Zhaojiabang system is about 7.38km 2 , the service area of ​​Luban system is about 3.58km 2 , The current design of the system has a rainstorm return period of once a year, and the combined system overflow rainwater is pumped and discharged into the Huangpu River. Use the pipeline network geographic information system and high-definition aerial photos to obtain pipeline and land use property data. In this example, the Infoworks software platform is selected to build a drainage network model including the Zhaojiabang and Luban systems, and the actual measurement data is used for calibration verification to ensure the validity of the model. In specific applications, software with similar functions can be selected for model b...

Embodiment 2

[0169] Example 2, formulating an emergency plan for drainage system waterlogging prevention

[0170] 1) Analysis of meteorological rainstorm four-color early warning level

[0171] In this example, the corresponding meanings of the selected meteorological four-color warnings are shown in Table 3. The yellow, orange, and red rainstorm warnings in the meteorological warnings correspond to the 1-year, 2-year and 5-year short-duration design rainstorms in Shanghai. adapt.

[0172] Table 3 Meteorological four-color early warning comparison table

[0173]

[0174] 2) Analyze the discharge conditions of the intercepted sewage

[0175] The total scale of Zhaojiabang Pumping Station is 34.23m 3 / s, of which the flow rate of the rainwater distribution pump is 29.43m 3 / s(3.27m 3 / s*9 units), the flow rate of the sewage distribution pump is 4.8m 3 / s(1.2m 3 / s*4 units, equivalent to interception capacity 3.3mm / h). The total scale of Luban Pumping Station is 31m 3 / s, where th...

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Abstract

The invention belongs to the field of waterlogging prevention engineering, and discloses a drainage system waterlogging prevention emergency plan making method, which comprises the following steps of:constructing a drainage pipe network mathematical model and selecting designed rainfall; weather and rainstorm four-color early warning grade analysis; intercepting sewage discharge condition analysis; drainage system pipeline regulation and storage capacity analysis; analyzing the critical rain intensity of the drainage system; analyzing pre-evacuation time of a drainage system; and sensitivityanalysis of pump station operation scheduling factors and flood prevention effects. Hydrological and hydraulic model software is applied to making work of the drainage and waterlogging prevention emergency plan, the scientificity of the emergency plan can be remarkably improved, and the waterlogging risk of a drainage system is further reduced.

Description

technical field [0001] The invention belongs to the field of waterlogging prevention engineering, and in particular relates to a method for formulating an emergency plan for waterlogging prevention of a drainage system, and an application scene thereof. Background technique [0002] With the continuous development and construction of cities, the proportion of impermeable surfaces such as concrete roofs and roads has increased significantly, resulting in major changes in the urban hydrological cycle. Compared with the natural underlying surface before development, the runoff coefficient in urbanized areas is increased, the time of flow generation and confluence is shortened, and the time of peak flow and peak appearance is earlier, which brings greater pressure to urban waterlogging prevention work. [0003] In recent years, climate change has intensified and extreme rainstorms have occurred frequently. Extreme rainstorms often bring heavy rainfall in a short period of time....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/06G06Q50/26G06F113/08G06F113/14
CPCG06Q10/0639G06Q50/26G06F30/20G06F2113/08G06F2113/14Y02A10/40
Inventor 谭琼时珍宝沈庆然张建频沈于田孙如驭
Owner 上海市水务规划设计研究院
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