轴向冻融滑坡对埋地管道的应力影响分析

发布时间：2018-06-04 14:26

  本文选题：冻土区 + 埋地管道　； 参考：《辽宁石油化工大学学报》2016年06期

【摘要】：冻融循环是冻土区埋地管道主要的安全隐患,它不仅给管道带来额外的应力,而且会改变地形结构特殊区域原有的地质特性,在特定的条件下造成地质灾害的发生。系统研究了因冻土融化而产生的冻融滑坡给管道应力带来的影响,而且分析了不同位置的轴向滑坡对管道应力的影响。通过模拟分析可知,不同位移的轴向滑坡对管道应力产生的影响差异很大;改变滑坡的位置,对管道的应力也会产生较大的影响。对受冻融滑坡影响的管道进行的模拟分析结果,可很好地反映应力变化情况,可为冻土区埋地管道的施工建设提供理论依据。
[Abstract]:Freezing and thawing cycle is the main safety hazard of buried pipeline in permafrost area. It not only brings additional stress to the pipeline, but also changes the original geological characteristics of the special terrain structure, and causes geological disasters under certain conditions. The effect of freezing thawing landslide caused by frozen soil melting is studied systematically. The effect of axial landslide in different positions on the stress of pipeline is analyzed. Through the simulation analysis, it is found that the influence of the axial landslide with different displacement on the pipe stress is very different; the change of the position of the landslide will have a great influence on the stress of the pipeline. The simulation analysis results of the pipeline which is affected by the freezing thawing landslide can be very good. Reflecting the change of stress can provide a theoretical basis for the construction and construction of buried pipelines in permafrost regions.
【作者单位】： 辽宁石油化工大学石油天然气工程学院;
【基金】：辽宁省高等学校优秀人才支持计划项目(LR2013016)
【分类号】：TE973
，

本文编号：1977693