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| 长输油气管道裂纹缺陷事故树模型的建立 | |
| 引用本文： | 倪晓阳,周刚. 长输油气管道裂纹缺陷事故树模型的建立[J]. 地质科技情报, 2005, 24(Z1): 51-54 |
| 作者姓名： | 倪晓阳 周刚 |
| 作者单位： | 中国地质大学工程学院,武汉,430074 |
| 摘 要： | 分析了引起长输油气管道裂纹缺陷的原因(腐蚀疲劳、应力腐蚀破裂、氢脆、机械疲劳断裂)及其特征.应用事故树理论建立了长输油气管道发生裂纹缺陷的事故树模型,给出了事故发生概率的计算方法.根据俄罗斯长输油气管道的故障资料计算出在长期高压条件下运输聚乙烯时,发生长输油气管道裂纹缺陷的概率,计算结果与统计概率基本相同. |
| 关 键 词： | 油气管道 裂纹缺陷 事故树 |
| 文章编号： | 1000-7849(2005)S0-0051-04 |
| 修稿时间： | 2005-04-20 |
Establishment of FTA Model of Cracks in Long Gas and Oil Pipelines |
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| NI Xiao-yang,ZHOU Gang. Establishment of FTA Model of Cracks in Long Gas and Oil Pipelines[J]. Geological Science and Technology Information, 2005, 24(Z1): 51-54 | |
| Authors: | NI Xiao-yang ZHOU Gang |
| Abstract: | This article analyzes the reasons (corrosion fatigue, corrosion cracking, hydrogen brittleness and mechanical fatigue)for the disfigurements of cracks in long gas and oil pipelines,and characters of the disfigurements of cracks. By using fault tree analysis(FTA)theories,the paper has set up FTA model to explain reasons for disfigurements of cracks in long gas and oil pipelines. The method to count accident probability has been proposed and further been testified with cases. FTA model and its results analysis can be used as theoretic foundations on pipelines repair,accident diagnosis,and new pipelines design. |
| Keywords: | gas and oil pipeline disfigurement of crack FTA(fault tree analysis) |
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