【摘要】 为研究断层作用下埋地管道的力学状态，基于管土相互作用理论，采用固定边界壳单元模型、管壳耦合模型、等效弹簧边界模型、管单元模型4种管土作用模型，对比分析管道穿越断层计算效果。结果表明：4种模型得到的计算应变趋势基本一致，其中固定边界壳单元模型、管壳耦合模型、等效弹簧边界模型结果基本吻合，计算应变大于管单元模型。同时，4种模型均得出管道与走滑断层交叉角不宜为90°。在此基础上，提出有限单元适用的断层工况，并给出相关应用建议。更多还原

【Abstract】 In order to study the mechanical state of buried pipeline under fault action, based on the pipe-soil interaction theory, four pipe soil interaction models including fixed boundary shell element model, pipe shell coupling model, equivalent spring boundary model and pipe element model are established. The calculation effect of pipeline crossing fault was compared and analyzed. The results show that the calculated strain trends of the four models are basically the same, among which the results of fixed boundary shell element model, pipe shell coupling model and equivalent spring boundary model are basically consistent, and the calculated strain is larger than that of pipe element model. At the same time, the intersection angle between the pipeline and the fault should not be 90° according to the four models. On this basis, the fault conditions applicable to the finite element are put forward, and relevant application suggestions are given.更多还原