Method for evaluating health of water supply pipelines

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.

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]...

AI Technical Summary

Problems solved by technology

[0003] 1) The evaluation indicators are difficult to unify and have no universality: due to the differences in the scale, location, status and existing operation information of different water supply pipe networks, there are large differences in the selection of evaluation indicators for pipelines in the existing technology, and there are no evaluation indicators. Uniform standards, the established evaluation system can only be adapted to a specific water supply network, poor universality

[0004] 2) The method of the aging failure probability model commonly used in the prior art requires long-term, years-accumulated, system historical operation data support, and it is difficult to implement

[0005] 3) The existing technology mainly focuses on analyzing the probability of a pipe burst event, ignoring the influence of leakage of the pipe network, and leakage is a very important cause of a pipe burst event, ignoring the impact of leakage leads to poor reliability of the evaluation results

[0006] 4) The existing index evaluation method adopts the traditional analytic hierarchy process in the determination of the weight, and uses the results of expert surveys to construct the judgment matrix, which is easily affected by the subjective factors, occupational background, technical level and other factors of the survey objects

[0007] 5) The existing technology lacks reasonable quantitative judgment standards for the evaluation results of pipelines

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