毛乌素沙漠区输气管道泄漏事故树分析

Analysis of Leak Fault Tree for Long-distance Natural Gas Pipeline in Maowusu Desert

分析了导致毛乌素沙漠区输气管道3起泄漏事故的诸因素,建立了输气管道泄漏事故树,得到了泄漏事故树系统的11个最小径集。通过对其基本事件的结构重要度进行定性分析,指出该输气管道泄漏事故的基本因素是管道泄漏其他因素(A1)和工程安全质量因素(A2),后者为最重要因素。

Various factors led to three leaking accidents of the natural gas pipeline in Maowusu Desert are analyzed and natural gas pipeline leaking fault tree is set up. By the fault tree model, 11 most trail collections of leaking fault tree system are obtained. Based on the qualitative analysis to its structural importance of elementary event,it is pointed out that among the essential factors,the fundamental factor of leaking accident is pipeline leaking other factors (A_1) and project safety and quality factor (A_2) ,the latter is the most important factor.