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A Stochastic Simulation Method for Assessing the Reliability of Urban Water Supply Network

A stochastic simulation and urban water supply technology, applied in the field of stochastic simulation, to achieve high computational efficiency, good stability, and improved accuracy

Active Publication Date: 2021-04-09
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0005] The invention provides a stochastic simulation method for evaluating the reliability of urban water supply pipe network, which is used to solve the technical problems of hydraulic simulation and reliability evaluation of urban water supply pipe network under the action of earthquake

Method used

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  • A Stochastic Simulation Method for Assessing the Reliability of Urban Water Supply Network
  • A Stochastic Simulation Method for Assessing the Reliability of Urban Water Supply Network
  • A Stochastic Simulation Method for Assessing the Reliability of Urban Water Supply Network

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Embodiment 1

[0048] Embodiment 1: as Figure 1-4 Shown, a kind of stochastic simulation method of assessing the reliability of urban water supply pipe network, at first application EPANET software establishes the hydraulic model of embodiment water supply pipe network, and calculates the seismic damage rate of pipeline; secondly utilize the step Step1-4 in the method of the present invention to use MATLAB Invoke programming for the platform, and analyze the functional reliability of the water supply network under the seismic intensity of VIII and IX. details as follows:

[0049] (1) Apply EPANET software to establish the hydraulic model of the water supply pipe network of the embodiment, and calculate the earthquake damage rate of the pipe.

[0050] Construct the hydraulic model of the pipe network with EPANET and export the file of the pipe network system, such as figure 2 shown. The water supply network uses high-level pools to supply water in different areas. The water supply networ...

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Abstract

The invention relates to a stochastic simulation method for evaluating the reliability of urban water supply pipe networks, and belongs to the technical field of anti-seismic safety of urban water supply pipe networks. The invention comprises the steps of: calculation of pipeline earthquake damage rate; generation of earthquake damage scene of water supply pipe network based on Monte Carlo simulation; hydraulic analysis of low pressure water supply pipe network based on "step-by-step iteration" method; calculation of seismic reliability index. The invention does not need to modify the pipe network system file or write additional codes to solve the hydraulic equation of the low-pressure pipe network, and has the advantages of high calculation efficiency and good stability. The invention provides a new idea for the hydraulic simulation and reliability evaluation of the water supply pipe network during an earthquake, and has certain guiding significance for disaster relief and repair work after the earthquake.

Description

technical field [0001] The invention relates to a stochastic simulation method for evaluating the reliability of urban water supply pipe networks, and belongs to the technical field of anti-seismic safety of urban water supply pipe networks. Background technique [0002] The urban water supply system, together with the transportation, electricity, heat supply, and communication systems, is the lifeblood of the operation of a modern city, and is vividly called the lifeline engineering system of a modern city. In recent years, the urban lifeline engineering system is an infrastructure that is closely related to the daily production and life of the city. People's dependence on it has been continuously strengthened, and the requirements have become increasingly strict. Different from other general urban infrastructure, lifeline projects have the characteristics of wide coverage, close connection between systems, and local damage may affect system functions. Earthquakes are one ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06Q50/06
CPCG06Q50/06G06F30/367G06F2113/14
Inventor 和丽荣杜坤
Owner KUNMING UNIV OF SCI & TECH
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