川渝地区输气管道第三方破坏故障树分析

The Fault Tree Analysis of Third Party Damage to Gas Pipelines in Sichuan-Chongqing Region

第三方破坏是引起输气管道失效的主要因素之一,直接影响输气管道的可靠性和使用寿命。针对川渝地区引起输气管道第三方破坏的各个因素进行系统分析,建立了以第三方破坏致使输气管道失效为顶事件的输气管道第三方破坏故障树。通过对输气管道第三方破坏故障树的分析,得到了故障树的各阶最小割集和引起川渝地区输气管道第三方破坏的主要因素,并提出了相应措施以预防输气管道遭到第三方破坏。

Third party damage is one of major factors leading to the gas pipeline failure,which directly affects the reliability of gas pipelines and shortens the service life of them.In this paper,the systematic analysis is carried out about different factors that cause the third party damage to gas pipelines in Sichuan-Chongqing region.Then,the fault tree of third party damage to gas pipelines has been built up according to the top event that third party damage results in the failure of gas pipelines.Next,the minimum cut of every stage of fault tree and main factors causing third party damage to gas pipeline in Sichuan-Chongqing region have been concluded based on the analysis of fault tree about third party damage to gas pipelines.Finally,some measures are presented so as to prevent third party damage to gas pipelines.