地层错动作用下埋地聚乙烯管道的变形特征数值模拟  

Study on the Deformation Characteristics of Buried Polyethylene Pipeline Under Action of Stratum Dislocation

作　　者：燕集中[1] 杨洪 沈利民[2,3,4] 周云 汤文亮[2,3] YAN Ji-zhong;YANG Hong;SHEN Li-min;ZHOU Yun;TANG Wen-liang(Jiangsu Special Equipment Safety Supervision and Inspection Institute,Nanjing 211162,China;School of Chemical Engineering&Technology,China University of Mining and Technology,Xuzhou 221116,China;National Coal Processing and Cleaning Engineering Technology Research Center,Xuzhou 221116,China;State Key Laboratory of Coking Coal Resources Green Exploitation,Xuzhou 221116,China)

机构地区：[1]江苏省特种设备安全监督检验研究院,江苏南京211162 [2]中国矿业大学化工学院,江苏徐州221116 [3]国家煤加工与洁净化工程技术研究中心,江苏徐州221116 [4]炼焦煤资源绿色开发全国重点实验室,江苏徐州221116

出　　处：《石油化工设备》2025年第2期1-7,共7页Petro-Chemical Equipment

基　　金：江苏省特种设备安全监督检验研究院科研基金(KJ(Y)2023017)。

摘　　要：地层错动严重威胁埋地聚乙烯管道的运行安全。基于ABAQUS分析软件,考虑管道和土体的相互作用,开展了在地层错动作用下的埋地聚乙烯管道应力特征数值模拟研究,分别讨论了地层错动深度、管道内压、管道埋深等参数影响下管道的应力变化特征和分布规律。研究结果表明,管道最大Mises应力随地层错动深度和管道内压的增大而增大,随管道埋深增大呈现出先增大后减小趋势。最大Mises应力分布位置随地层错动深度和管道埋深增加由下盘区向过渡区转移,随内压增加而位置基本不变。管道最大变形位置与最大Mises应力位置并不一致。The buried polyethylene pipeline inevitably passes through the stratum dislocation area,which poses serious challenges to the normal operation of the pipeline.Considering the interaction between the pipeline and the soil,a numerical simulation calculation model was proposed to simulate the stress characteristics of the pipeline under the action of stratum dislocation.The effects oflayer dislocation depth,internal pressure,and burial depth of the pipeline on the stress value and deformation distribution were discussed.The results show that the maximum Mises stress increases with the increase of stratum dislocation depth and pipeline internal pressure,and first increases and then decreases with the increase of pipeline buried depth.The maximum Mises stress distribution location shifted from the footer area to the transition area with the increase of stratum dislocation depth and pipeline buried depth,and remained basically unchanged with the increase of internal pressure.The maximum deformation location of the pipeline does not coincide with the maximum Mises stresslocation.

关 键 词：埋地管道 地层错动 聚乙烯管 数值模拟 管道破坏 

分 类 号：TQ055.8[化学工程]