国内外学者目前的研究主要针对管道的单点腐蚀缺陷，鲜少有关于双点腐蚀的，尤其是缺少对高钢级管道双点腐蚀缺陷的研究。以X100高钢级单蚀、双蚀管道为研究对象，采用ABAQUS软件建立有限元模型，研究了腐蚀深度、腐蚀宽度、腐蚀长度、双点蚀间距等不同腐蚀缺陷几何参数对轴向双点腐蚀失效压力的影响情况。结果表明：相对于其他参数，轴向双点蚀深度对失效压力的影响最大，同时，随着轴向双点蚀缺陷深度、缺陷长度的增大，失效压力减小，并且减少的速率呈现递减趋势。

The current researches of domestic and foreign scholars mainly focus on single-point corrosion defects of pipelines. There are few studies on double-point corrosion, especially the lack of research on double-point corrosion defects of high-grade steel pipelines. Taking X100 high-steel-grade single-corrosion and double-corrosion pipelines as the research object, ABAQUS software was used to establish a finite element model to study the influence of different corrosion defect geometric parameters such as corrosion depth, corrosion width, corrosion length, and double pitting spacing on the failure pressure at axial double pitting corrosion condition. The results show that compared with other parameters, axial double pitting depth had the greatest influence on the failure pressure. At the same time, as the depth and length of the axial double pitting defect increased, the failure pressure decreased, and the rate of decrease showed a decreasing trend.