A Method for Assessing Risk Rating of Natural Gas Pipeline Based on Accident Statistics

This article collected 199 cases domestic natural gas pipeline leakage accidents, and used the mathematical methods and SPSS statistical analysis software to analysis these accident cases. Based on the analysis of accidents statistics and disaster reduction factors, the natural gas pipeline risk rating assessment method based on accident statistics was proposed according to Risk value method and Risk matrix analysis. Taking the gas pipelines in a certain city for example, the risk grade of the pipeline was analyzed by the method proposed in this article, and more rigorous and effective measures to reduce the pipeline risk were proposed.