摘要
为了科学、准确地辨识长输天然气管道坡面水毁风险敏感性因素,为管道水毁灾害的防治提供决策依据,根据长距离输气管道坡面水毁的特点,提出了管道坡面水毁风险敏感因素的辨识方法。通过对坡面水毁灾害特征的分析,将辨识过程分为基础分析、初步分析、详细分析3个阶段。在基础分析阶段,给出了确定待辨识区域的识别准则;在初步分析阶段,给出了资料收集和现场调查的关键内容;在详细分析阶段,建立了管道坡面水毁失效故障树,从而辨识出管道坡面水毁风险敏感因素。研究表明,利用分阶段的辨识方法对长输天然气管道坡面水毁进行风险分析,能够全面、系统地识别显存的和潜在的坡面水毁风险敏感因素。
To identify sensitivity factors for flood-damage risks on trench slopes of long-distance natural gas pipelines scientifically and accurately and to establish solid foundations for policy-making with regard to prevention and controlling of flood damages of pipelines, techniques for identification of sensitivity factors for flood-damage risks on trench slopes of gas-transmission pipelines have been proposed. With consideration to specific features of flood damages of slopes, the identification process can be divided into three basic steps： background analysis, preliminary analysis and detailed analysis. During background analysis, principles for clarification of area to be identified shall be given; the preliminary analysis shall be dominated by key sectors involving data acquisition and site surveys; during the detailed analysis stage, fault tree for failure of slopes shall be established to identify sensitivity factors for flood-damage risks of slopes. Research results show that a staged identification method can be used to identify sensitivity factors for existing and potential risks related to flood damages of slopes for long-distance natural gas pipelines comprehensively and systematically. （4 Figures, 3 Tables, 8 References）
出处
《油气储运》
CAS
北大核心
2015年第5期477-481,共5页
Oil & Gas Storage and Transportation
关键词
输气管道
坡面水毁
敏感因素
辨识
gas pipeline, flood damage of slope, sensitivity factor, identification
