Method for building city gas pipe network vulnerability evaluation model

Abstract

The invention discloses a method for building a city gas pipe network vulnerability evaluation model. The method comprises the following steps that an evaluation model is built through fuzzy hierarchy comprehensive evaluation; a vulnerability evaluation index weight is determined; a city gas pipe network system fuzzy comprehensive evaluation basic model is built. As the system vulnerability evaluation and traditional risk evaluation are similar and both need to build evaluation index systems according to evaluation purposes, a proper evaluation method is selected to build an evaluation mathematical model, the model is utilized to conduct system vulnerability calculation and vulnerability grading, the quantitative and qualitative combined system vulnerability evaluation is achieved, and a research result of the city gas vulnerability can lay the foundation for improving the level of a Chinese gas pipeline management technology, prolonging the service life of a city gas pipeline and avoiding or reducing sudden invalidation accidents. With the deepening of the vulnerability research, the vulnerability evaluation is introduced in the filed of research of the science of disasters, the point of view of the safety evaluation is made to be wider, the content of the safety evaluation is made to be fuller, and the evaluation result has more practical value.

Description

technical field [0001] The invention belongs to the technical field of urban gas pipeline network research, and in particular relates to a method for establishing a weak evaluation model of an urban gas pipeline network. Background technique [0002] With the rapid development of the construction industry, people's awareness of environmental protection is getting stronger and stronger. It is foreseeable that in the near future, the demand for natural gas as a clean energy fuel in cities and towns will increase rapidly, and gas transmission pipelines will be built rapidly. Due to the flammable and explosive characteristics of gas, once a natural gas pipeline running in a densely populated area leaks or explodes, it will often cause huge losses to the lives and property of urban residents, endangering personal health and the ecological environment. The urban gas pipeline network is different from long-distance oil and gas pipelines. It has many ancillary equipment, and the ris...

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Problems solved by technology

[0010] The purpose of the embodiments of the present invention is to provide a method for establishing a model for evaluating the vulnerability of urban gas pipeline networks, which aims to solve the problems existing in the existing urban gas pipeline networks due to the large number of auxiliary equipment, many factors affecting the risk of gas pipelines, and different urban environments. , the characteristics of gas pipelines are also different, which increases the difficulty of establishing the vulnerability assessment methods and models of urban gas pipelines, and weakens the effectiveness, accuracy and scientificity of pipeline vulnerability assessment.

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