本文结合工程实际,使用ABAQUS有限元软件建立了存在初始缺陷的高温海底管线与周围土壤的相互作用受力模型,计算出了一系列不同埋深和初始缺陷工况下的隆起屈曲起始温度,然后将计算结果对比设计温度进行校核,进而得到能使该管线满足隆起屈曲要求的最小埋深及海床平整度,为后续的挖沟和铺设作业提供指导。 In this paper, the ABAQUS finite element software was used to establish the interaction force model between the high temperature pipeline and the surrounding soil with initial defects, and a series of buckling initiation temperatures under different depths and initial defects were calculated. Then, the calculation results are compared with the design temperature to check, and then the minimum buried depth and the seabed flatness which can satisfy the buckling requirements of the pipeline are obtained, which can provide guidance for the subsequent trenching and laying work.