Method for evaluating health of water supply pipelines

A technology for health evaluation and water supply pipelines, applied in instruments, data processing applications, calculations, etc., can solve the problems of poor reliability of evaluation results, lack of universality, poor universality, etc.

CN103578045AInactive Publication Date: 2014-02-12GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-02-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the field of water supply pipelines, in particular to a method for evaluating the health of water supply pipelines. The method particularly includes the steps that data of primary attributes of basic indexes of a water supply pipe network are acquired, and impact factors corresponding to the basic indexes are determined according to the data of the attributes; pipe explosion and leakage are ranked to pipeline failures in a statistical mode, and unit failure coefficients of the impact factors are calculated; weights of the impact factors are calculated according to unit failure frequency; the impact factor with the minimum unit failure coefficient in the basic indexes is used as a reference factor, and the correlation coefficients between the impact factors in the basic indexes are calculated; the health degrees of the water supply pipelines are calculated and evaluated according to the weights of the impact factors and the correlation coefficients; health classification is conducted according to the evaluated health degrees of the water supply pipelines, and the health states of the pipelines to be evaluated are evaluated according to the health classification. The evaluation result is visual, universality is good, and production and application are easy to conduct.
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Description

technical field

[0001] The invention relates to the field of water supply pipelines, in particular to a method for evaluating the health of water supply pipelines. Background technique

[0002] At present, my country's urban water supply pipe network generally has the problems of aging pipe network and serious lag in maintenance. The management level, accident prevention ability and accident rapid response ability need to be improved urgently. A reasonable and effective water supply pipe health evaluation system should be established to conduct health evaluation of the pipe network and determine A reasonable maintenance priority and maintenance plan for urban water supply pipelines can not only ensure the safety of the water supply pipeline network, but also save a lot of manpower, material and financial resources of relevant departments. The technical achievements of the existing water supply network health assessment research still have the following deficiencies:

[0003] ...

Examples

Embodiment 1

[0062] like figure 1 Shown is a flowchart of a specific embodiment of a method for evaluating the health of a water supply pipeline in the present invention. see figure 1 , the specific steps of a water supply pipeline health evaluation method in this specific embodiment are as follows:

[0063] Step S101: collect the attribute data of the basic indicators of the water supply network, and determine the impact factors corresponding to each basic indicator according to the attribute data.

[0064] In this specific embodiment, through the investigation of the data records of the water supply pipe network, according to the data collection and completeness and accuracy requirements, the five pipelines of pipe diameter, pipe material, pipe age, buried depth and interface mode are selected. The basic attributes are the basic indicators of the evaluation method. In the specific implementation, the basic index types can be appropriately expanded according to the data source, and the ...

Embodiment 2

[0150] In Embodiment 1, the r(i, j) obtained by the preprocessing of data in step S1031 can adopt a two-step normalization method, and further perform a normalization method, specifically:

[0151] The evaluation index value obtained by the calculation method in step S1031 As r'(i,j), the unit failure coefficient C ij The corresponding evaluation index value r(i,j) after normalization processing can be obtained through normalization processing, and its calculation formula is:

[0152] r ( i , j ) = r ' ( i , j ) Σ j = 1 m r ' ( ...