中国塑料 ›› 2025, Vol. 39 ›› Issue (5): 63-69.DOI: 10.19491/j.issn.1001-9278.2025.05.010

• 加工与应用 • 上一篇    下一篇

多因素协同作用的PE管道损伤数值模拟研究

汤文亮1,2,3(), 燕集中4, 沈利民1,2,3(), 杨洪1,2,3, 吴胜平4, 王国新4   

  1. 1.中国矿业大学化工学院,江苏 徐州 221116
    2.国家煤加工与洁净化工程技术研究中心,江苏 徐州 221116
    3.炼焦煤资源绿色开发全国重点实验室,江苏 徐州 221116
    4.江苏省特种设备安全监督检验研究院国家压力管道元件 质量检测检验中心,南京 200000
  • 收稿日期:2024-07-07 出版日期:2025-05-26 发布日期:2025-05-22
  • 通讯作者: 沈利民(1984—),男,副教授,从事极端环境下材料损伤与断裂研究,shenlm@cumt.edu.cn
    E-mail:TS22040210P31@cumt.edu.cn;shenlm@cumt.edu.cn
  • 作者简介:汤文亮(1998—),男,在读硕士研究生,从事极端环境下材料损伤与断裂研究,TS22040210P31@cumt.edu.cn
  • 基金资助:
    江苏省特种设备安全监督检验研究院科研基金[KJ(Y)2023017]

Numerical simulation of PE pipeline damages with synergistic effect of multiple factors

TANG Wenliang1,2,3(), YAN Jizhong4, SHEN Limin1,2,3(), YANG Hong1,2,3, WU Shengping4, WANG GuoXing4   

  1. 1.School of Chemical Engineering,China University of Mining and Technology,Xuzhou 221116,China
    2.National Coal Processing and Cleaning Engineering Technology Research Center,Xuzhou 221116,China
    3.State Key Laboratory of Coking Coal Resources Green Exploitation,Xuzhou 221116,China
    4.National Pressure Pipeline Component Quality Supervision and Inspection Center of Jiangsu Special Equipment Safety Testing and Inspection Institute,Nanjing 200000,China
  • Received:2024-07-07 Online:2025-05-26 Published:2025-05-22
  • Contact: SHEN Limin E-mail:TS22040210P31@cumt.edu.cn;shenlm@cumt.edu.cn

摘要:

基于ABAQUS软件,开展了近线占压、地面沉降、管道内压、管道埋深及环境温度协同作用的聚乙烯(PE)管道损伤数值模拟工作,通过设计正交试验,研究不同因素对管道损伤的影响贡献度。结果表明:在多因素协同作用下,管道受到轴向拉伸和径向弯曲,在占压区边缘出现最大Mises应力及最大管道横截面变化率。通过正交试验分析,发现在近线占压及管道周边土壤沉降同时发生时,地面占压为PE管道损伤的主控因素,地面沉降则对管道损伤影响有限。

关键词: 聚乙烯管道, 近线占压, 地面沉降, 正交试验, 数值模拟

Abstract:

In this paper, a numerical simulation of polyethylene (PE) pipeline damages was conducted using the ABAQUS software by consideration of the synergistic effects of near⁃line pressure, ground settlement, pipeline internal pressure, buried depth, and ambient temperature. An orthogonal experiment was designed to investigate the impact of different factors on the pipeline damages. The results indicated that the pipeline experienced axial stretching and radial bending under the combined action of multiple factors, and the maximum Mises stress and maximum change rate occurred at the edge of the pressure occupied area. Through orthogonal analysis, it was found that when the near line occupying pressure and soil settlement around pipeline occurred simultaneously, the ground occupying pressure was the primary factor contributing to PE pipeline damage and the ground subsidence had a. limited influence.

Key words: polyethylene pipeline, near line occupying pressure, land subsidence, orthogonal test, numerical simulation

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