关键词: 跨越管道, 跨长, 应力, 应变, 有限元分析

Abstract: In order to analyze the stress and strain of single directly crossing pipeline with anchor block influenced by gravity and the inner pressure, the finite element analysis software ANSYS was used to make numerical simulation. Through changing the length and the pipe diameter of crossing pipeline, the stress concentration point and the pipeline failure point were found. Conclusions were made as follows: with the increase of the pipeline length, the stress and strain increased by the influence of gravity and the inner pressure. When the length exceeded 25 m, the crossing pipeline structure failed in strength. When the diameter reached 610 mm, it also failed. To avoid the failure of the pipeline, the comprehensive influenced factors should be thought about, and truss crossing pipeline and suspending pipeline should be used.

Key words: Crossing pipeline, Length of pipeline, Stress, Strain, Finite element analysis