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Water supply network operation capability evaluation method based on COX-PH survival model

A COX-PH, water supply network technology, applied in the direction of instruments, data processing applications, resources, etc.

Pending Publication Date: 2022-02-11
BEIJING RES CENT OF URBAN SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the coupling effect of various factors is difficult to conduct further research through superposition, that is to say, through factor analysis and mechanism research, the aging and damage status of the pipeline under the comprehensive action of multiple factors can be explored, so as to analyze the overall operation status of the pipeline. Scientific evaluation, this research path has certain limitations

Method used

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  • Water supply network operation capability evaluation method based on COX-PH survival model
  • Water supply network operation capability evaluation method based on COX-PH survival model
  • Water supply network operation capability evaluation method based on COX-PH survival model

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Embodiment Construction

[0019] Certain embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to these set forth embodiments; rather, these embodiments are provided so that this invention will satisfy applicable legal requirements.

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0021] The evaluation of the operation capacity of water supply pipelines based on data has certain practical significance for the maintenance of existing pipelines and the design of new pipelines. A considerable part of the water supply pipelines in most cities in my country has entere...

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Abstract

The invention provides a water supply network operation capability evaluation method based on a COX-PH survival model, and the method comprises the steps: S10, collecting historical accident data of an urban water supply pipeline, the accident data comprising accident type data, time data and accident point regional feature data; S20, processing the accident data, determining 12 classification variables, wherein the 12 classification variables comprise seven building related variables, three time variables, one accident type variable and one road variable; S30, performing chi-square independence test on the correlation of the 12 classification variables; S40, based on the 12 classification variables, screening out 7 single factors and 42 cross factors by the survival model; and S50, establishing a COX-PH survival model so as to predict the accident risk of the water supply network.

Description

technical field [0001] The invention relates to the technical field of urban underground pipeline operation guarantee, in particular to a method for evaluating the operation capacity of a water supply pipe network based on a COX-PH survival model. Background technique [0002] The safe operation of underground pipelines is the foundation of urban prosperity. All kinds of underground pipelines are distributed vertically and horizontally and coexist in the underground space. When a certain pipeline breaks down or breaks down, it is very easy to act on other pipelines in various forms of damage, causing various risk factors to interact, superimpose and even promote each other, thereby causing major disasters and accidents, adversely affecting urban operations, and even greater disaster. [0003] To ensure the efficient and safe operation of underground pipelines, it is necessary to deeply study the causes of accidents and operating status of underground pipelines, so as to re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q10/0639G06Q50/06
Inventor 郑建春杨艳英尚秋谨芮静朱伟刘双庆
Owner BEIJING RES CENT OF URBAN SYST ENG
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