The Analysis of Seismic Vulnerability for Oil and Gas Long Distance Pipeline Based on Holistic Risk Fuzzy Analytical Approach
Peng Zhang, Risheng Song, Xingyu Peng, Liqiong Chen, YU Jian-sheng · 2009
This paper presents the hazard factors and measure spaces of the seismic vulnerability for oil and gas long distance pipeline through the introduction of improved FAHP based on the holistic risk theory, and builds a seismic vulnerability evaluation model combined with probability and statistical method to calculate the probability of hazard factors and the value of seismic vulnerability, then draws the probability density curve and cumulative density curve of seismic vulnerability for pipeline unit. As a result, the value of vulnerability distribution interval and risk classification system under the seismic loads can be obtained. According to the seismic data and field data on the Guangyuan-Chengdu section of Lanzhou-Chengdu-Chongqing Products Oil Pipeline in Wenchuan earthquake, the result of this evaluation model is consistent with the pipeline performance in the actual. Therefore, the accuracy of the evaluation model can be verified.