柱面SH波作用下管道的动力响应

雷鸣 张茂晨 秦子豪 杨民 张维 路世伟

雷鸣, 张茂晨, 秦子豪, 杨民, 张维, 路世伟. 柱面SH波作用下管道的动力响应[J]. 高压物理学报, 2023, 37(2): 024203. doi: 10.11858/gywlxb.20220690
引用本文: 雷鸣, 张茂晨, 秦子豪, 杨民, 张维, 路世伟. 柱面SH波作用下管道的动力响应[J]. 高压物理学报, 2023, 37(2): 024203. doi: 10.11858/gywlxb.20220690
LEI Ming, ZHANG Maochen, QIN Zihao, YANG Min, ZHANG Wei, LU Shiwei. Dynamic Response of Pipeline Subjected to Cylindrical SH Wave[J]. Chinese Journal of High Pressure Physics, 2023, 37(2): 024203. doi: 10.11858/gywlxb.20220690
Citation: LEI Ming, ZHANG Maochen, QIN Zihao, YANG Min, ZHANG Wei, LU Shiwei. Dynamic Response of Pipeline Subjected to Cylindrical SH Wave[J]. Chinese Journal of High Pressure Physics, 2023, 37(2): 024203. doi: 10.11858/gywlxb.20220690

柱面SH波作用下管道的动力响应

doi: 10.11858/gywlxb.20220690
基金项目: 中国石油科技创新基金(2017D-5007-0604);湖北省自然科学基金(2019CFB224);爆破工程湖北省重点实验室开放基金(HKLBEF202011)
详细信息
    作者简介:

    雷 鸣(1974-),男,博士,副教授,主要从事油气储运工程安全评估及预警技术研究.E-mail:88456455@qq.com

    通讯作者:

    路世伟(1989-),男,博士,副教授,主要从事岩石动力学、岩土体稳定性研究.E-mail:lushiwei364@163.com

  • 中图分类号: O347

Dynamic Response of Pipeline Subjected to Cylindrical SH Wave

  • 摘要: 在地下空间开发建设过程中,钻爆法开挖诱发的爆破地震波对地下管道安全至关重要。当爆源距离管道较近时,波阵面的曲率会对管道的爆破动力响应特性产生显著影响。采用波函数展开法研究了柱面SH波爆破作用下管道的动应力集中问题,首先讨论了混凝土管道和PVC管道的动应力集中系数分布规律,进而探讨了一般情况下波源到管道轴线距离、入射波频率以及管道与土层剪切模量比η对管道内壁动应力集中系数的影响。结果表明:相较于PVC管道,混凝土管道内壁的动应力集中系数分布形状对柱面SH波频率较敏感;η是影响管道动应力集中系数的重要指标,当入射波频率一定时,随着η的增大,管道最大动应力集中系数也逐渐增大;η一定时,随着入射波频率增大,管道最大动应力集中系数逐渐减小;波源到管道轴线距离会因波阵面曲率对管道破坏位置产生影响,而其对最大动应力集中系数的影响较小。

     

  • 图  简化模型

    Figure  1.  Simplified model

    图  入射频率不同时PVC管道内壁DSCF环向分布曲线

    Figure  2.  DSCF circumferential distribution curves in the inner wall of the PVC pipe at different incident frequencies

    图  入射频率不同时混凝土管道内壁DSCF环向分布曲线

    Figure  3.  DSCF circumferential distribution curves in the inner wall of the concrete pipe at different incident frequencies

    图  f =10 Hz时不同η对应的管道内壁DSCF环向分布曲线

    Figure  4.  Circular distribution curves of DSCF in the inner wall for different η pipes (f =10 Hz)

    图  f =100 Hz时不同η对应的管道内壁DSCF环向分布曲线

    Figure  5.  Circular distribution curves of DSCF in the inner wall for different η pipes (f =100 Hz)

    图  f =200 Hz时不同η对应的管道内壁DSCF环向分布曲线

    Figure  6.  Circular distribution curves of DSCF in the inner wall for different η pipes (f =200 Hz)

    表  1  计算工况

    Table  1.   Calculation condition

    f/Hzr0/mParameters of soil Parameters of concrete pipe Parameters of PVC pipe
    ρs/(kg·m−3)μs/MPaρp/(kg·m−3)μp/GPaap/mmbp/mmρpvc/(kg·m−3)μpvc/GPaapvc/mmbpvc/mm
    10, 50, 100, 2002, 5, 101 20017 2 30012.5500585 1 5000.9615.516.0
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-11-09
  • 修回日期:  2022-12-21
  • 录用日期:  2023-02-24
  • 网络出版日期:  2023-04-13
  • 刊出日期:  2023-04-05

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