首页> 外文会议>Canadian Society for Civil Engineering Annual conference >PROBABILITY OF IGNITION MODEL FOR RUPTURE OF ONSHORE GAS TRANSMISSION PIPELINE AND ITS APPLICATION IN PIPELINE RISK ASSESSMENT
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PROBABILITY OF IGNITION MODEL FOR RUPTURE OF ONSHORE GAS TRANSMISSION PIPELINE AND ITS APPLICATION IN PIPELINE RISK ASSESSMENT

机译:陆上气体传输管道破裂的点火模型的概率及其在管道风险评估中的应用

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An ignited rupture of a gas transmission pipeline has serious consequences in terms of human safety. The evaluation of the probability of ignition (POI) for a potential pipeline rupture is therefore critical for the risk assessment of pipelines. This paper proposes a log-logistic regression model to evaluate the probability of ignition for ruptures of onshore gas transmission pipelines. The pipeline incident data collected by the Pipeline and Hazardous Material Safety Administration (PHMSA) of the United States Department of Transportation (DOT) are utilized to develop the POI model, as a function of the pipe diameter and operating pressure. The parameters in the model are estimated using the maximum likelihood method. The proposed probability of ignition model is applied in the quantitative risk assessment of a hypothetical gas pipeline. The societal risk level associated with the hypothetical pipeline is quantified by considering the probability of rupture, probability of ignition given rupture, and population distributions in the vicinity of the pipeline. The proposed POI model will facilitate the risk assessment of onshore gas transmission pipelines.
机译:燃气输送管道的点燃破裂对人身安全造成严重后果。因此,对于潜在的管道破裂,着火概率(POI)的评估对于管道的风险评估至关重要。本文提出了一种log-logistic回归模型,以评估陆上输气管道破裂时着火的可能性。由美国运输部(DOT)的管道与有害物质安全管理局(PHMSA)收集的管道事故数据被用于开发POI模型,该模型是管道直径和工作压力的函数。使用最大似然法估计模型中的参数。提出的点火概率模型被应用于假设的天然气管道的定量风险评估中。通过考虑破裂的可能性,因破裂而着火的可能性以及管道附近的人口分布来量化与假设的管道相关的社会风险水平。拟议的兴趣点模型将有助于陆上输气管道的风险评估。

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