摘要
为了研究管土间作用规律,运用ANSYS软件建立了基于接触单元的三维管土接触有限元模型,分析得到了管周接触应力的分布。给出了管土相互作用计算的弹性解,对比分析得出其与有限元模拟结果非常接近,表明管土接触分析模型能够较好地模拟管土相互作用。计算分析了管道埋深、土体粘聚力、管土摩擦因数、内摩擦角对管土接触应力的影响。
For studying the law of pipe-soil interaction,modeling 3Dpipe-soil contact finite-element analysis based on contact elements using ANSYS,the distribution of pipe circumferential contact stress is analyzed.The elastic solution of pipe-soil interaction is provided,which is close to the finite element solution,showing that the pipe-soil contact model can simulate pipe-soil interaction well.Finally,effects of pipe circumferential contact stresses of different parameters are analyzed,including buried depth,soil cohesive force,friction factor and internal friction angle.
出处
《石油矿场机械》
2015年第7期44-47,共4页
Oil Field Equipment
基金
中国石油管道公司科技攻关项目"管道环焊缝缺陷漏磁检测信号识别与评价技术研究"(20130204)
关键词
管土接触
埋地管道
ANSYS
力学分析
pipe-soil contact
buried pipeline
ANSYS
mechanical characteristics
