辽宁石油化工大学学报2016，Vol.36Issue(1)：27-30,4.DOI:10.3969/j.issn.1672-6952.2016.01.006
冻融滑坡作用下埋地管道的应力分析
Stress Analysis of Buried Pipeline under the Action of Freezing Thawing Landslide
摘要
Abstract
Based on there are a vast number of seasonal frozen soil and permafrost regions in China.For buried pipelines crossing permafrost region,pipelines were influenced by not only topography,but also freezing damage which was a major security problem.The geological disasters which were generated by freezing-thawing landslide were more common security problems for buried pipeline in permafrost zone.Because permafrost was more sensitive to the effects of temperature, permafrost melting and deposition occurred when the temperature was higher than the melting point of permafrost.The force of the buried pipelines in slope section was more complicated,therefore the model of finite element mechanics was established, and the stress of buried pipelines was numerical calculated and analyzed when the angle of slope or the length of thawing settlement were changed.By studying the slope section of buried pipelines in permafrost regions,the distribution of Von Mises stress values resulting from thawing settlement was obtained.Through simulation analysis of the stress of slope section of buried pipelines,the changes of stress were well reflected,which provided a theoretical basis for the construction of the building of the pipeline in permafrost regions.关键词
冻土区/埋地管道/管道应力/斜坡带/数值计算Key words
Permafrost regions/Buried pipeline/Stress of pipeline/Slope/Numerical calculation分类
能源科技引用本文复制引用
张一楠,马贵阳,王锡钰,周玮,王磊,张红芳..冻融滑坡作用下埋地管道的应力分析[J].辽宁石油化工大学学报,2016,36(1):27-30,4.基金项目
辽宁省高等学校优秀人才支持计划项目(LR2013016). （LR2013016）
