管道剩余强度评价是管道腐蚀与防护管理中的一项重要工作。以东黄老线为例,分别介绍了美国和我国对管道剩余强度的两种评价方法,以及该评价方法在东黄老线停输封存后再启输中的应用。通过该评价方法对管道运行压力的分析计算,确定了东黄老线的剩余强度,为合理制定东黄老线安全工艺运行条件提供了科学依据。该应用为今后在役管道剩余强度的评价提供了宝贵经验。 The evaluation of residual strength of pipeline is an important work in pipeline corrosion and protection management. Taking the Huang-Lao-Dong line in the east as an example, two evaluation methods of the residual strength of the pipeline in the United States and China are respectively introduced, and the application of the evaluation method in the stop-and-go transmission of the Donghuang-Lao-Lao- Through this evaluation method, the pipeline running pressure is analyzed and calculated to determine the residual strength of the Donghuang-Lao Xian-Lao line, which provides a scientific basis for the reasonable formulation of the safety operation conditions of the Donghuang-Lao Xian Line. This application provides valuable experience for the evaluation of remaining pipe strength in service.