Study on Safety Assessment of City Gas Pipelines

摘要

Safety assessment of underground city gas pipelines is an urgent problem in many cities in China nowadays. To assess the safety of underground city gas pipelines, fault tree was set up to find the fault modes by qualitative analysis. Quantitative analysis method was used according to the basic events so as to gain the risk probability of gas pipelines. Through actual engineering example, it proved that the assessment method can be used both for gas pipelines safety assessment and for safety comparison in different cities and regions.