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目前,我国已经进入了管道建设快速发展时期,管道的总里程每年正在以约25%的速度递增;过去几十年来安装和投入运行的管道已经逐步进入事故暴露和频发的阶段。如果继续放任过去安装施工的做法,那么,事故频发的势头将很难被迅速遏制。深入研究和探讨压力管道事故方面的规律和机理对于减少事故隐患和保障安全和谐的发展环境有重要的现实意义。1基本情况2005年12月,某公司所属天然气管道环焊缝发生断裂,事故地点的地面形成一个面积约10m~2、深约4m的大坑。由于地处偏僻,未造成人员伤亡。但是,本次事故却使这一重点工程的送气计划受到了重
At present, our country has entered a period of rapid development of pipeline construction. The total pipeline mileage is increasing by about 25% every year. The pipelines that have been installed and put into operation in the past decades have gradually entered the stage of accidental exposure and frequent accidents. If we continue to let go of installation and construction in the past, the frequent incidents will be hard to stop quickly. It is of great practical significance to study and study the rules and mechanism of pressure pipeline accidents in depth to reduce the hidden dangers of accidents and to ensure a safe and harmonious development environment. 1 Basic Information In December 2005, the gas pipeline girth weld of a company was fractured. The surface of the accident site formed a large pit of about 10m 2 and a depth of about 4m. Due to the remoteness, no casualties were caused. However, this incident has made the gas project of this key project seriously affected