燃气管道失效可能性评价

Failure probability of urban gas pipelines

本文对某段城市燃气管网进行了失效分析,利用布尔代数、故障树分析法,计算出影响燃气管道运行的各个基本事件的概率重要度.结果表明,外力影响、违章施工、选线不合理、管道承压能力低、第三方破坏和设计缺陷是影响管道可靠性的重要因素.

This paper calculates the failure influence of urban gas pipe by using Boolean algebra and the fault tree analysis methods. The results show that the impact force,the illegal construction,unreasonable line selection,pipeline’s low bearing capacity,the third party damage and design defects are the important influences for gas pipeline’s safety.