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地震作用下盾构隧道环缝单向振动防水性能试验

谢宏明 何川 封坤 梁敏飞 李策 AL-SEBAEAIMaged

谢宏明, 何川, 封坤, 梁敏飞, 李策, AL-SEBAEAIMaged. 地震作用下盾构隧道环缝单向振动防水性能试验[J]. 西南交通大学学报, 2020, 55(4): 713-718. doi: 10.3969/j.issn.0258-2724.20180456
引用本文: 谢宏明, 何川, 封坤, 梁敏飞, 李策, AL-SEBAEAIMaged. 地震作用下盾构隧道环缝单向振动防水性能试验[J]. 西南交通大学学报, 2020, 55(4): 713-718. doi: 10.3969/j.issn.0258-2724.20180456
XIE Hongming, HE Chuan, FENG Kun, LIANG Minfei, LI Ce, AL-SEBAEAI Maged. Unidirectional Vibration Waterproof Test of Ring Joint of Shield Tunnel under the Action of Earthquake[J]. Journal of Southwest Jiaotong University, 2020, 55(4): 713-718. doi: 10.3969/j.issn.0258-2724.20180456
Citation: XIE Hongming, HE Chuan, FENG Kun, LIANG Minfei, LI Ce, AL-SEBAEAI Maged. Unidirectional Vibration Waterproof Test of Ring Joint of Shield Tunnel under the Action of Earthquake[J]. Journal of Southwest Jiaotong University, 2020, 55(4): 713-718. doi: 10.3969/j.issn.0258-2724.20180456

地震作用下盾构隧道环缝单向振动防水性能试验

doi: 10.3969/j.issn.0258-2724.20180456
基金项目: 国家重点研发计划资助项目(2016YFC0802202),国家自然科学基金资助项目(U51578462,U1734205,51678496),天津市科技计划项目(合同编号:16YDLJSF00040),2016年中央高校基本科研业务费理工类科技创新项目(2682016CX014)
详细信息
    作者简介:

    谢宏明(1987—),男,博士研究生,研究方向为隧道与地下结构理论,E-mail:hongming_xie@163.com

    通讯作者:

    何川(1964—),男,教授,博士,研究方向为隧道与地下结构理论,E-mail:chuanhe21@163.com

  • 中图分类号: U451

Unidirectional Vibration Waterproof Test of Ring Joint of Shield Tunnel under the Action of Earthquake

  • 摘要: 为研究盾构隧道管片接缝弹性密封垫在地震作用下的防水性能,以在高烈度地震区修建的大断面海底盾构隧道——苏埃通道工程为依托,根据隧道环缝防水指标,研制了可模拟地震作用下的管片环缝单向振动防水试验装置,通过不同环缝张开量下单向振动防水试验,与未考虑地震作用时对应的张开与错动工况下静态防水试验结果进行对比,得出了张开量增大对密封垫防水性能的影响,并提出了弹性密封垫振动防水与静态防水的对应指标. 结果表明:单向振动作用下弹性密封垫发生渗漏时,水呈喷射状而非缓慢流出,张开量的增大较错动量增大更易使弹性密封垫防水性能显著降低;随着环缝张开量的变化,单向振动耐水压值为0.2~1.4 MPa,静态耐水压值为0.1~1.1 MPa;单向振动作用下环缝弹性密封垫的防水性能约为静态时防水性能的45%~78%.

     

  • 图 1  管片环缝变形形式

    Figure 1.  Segment joint opening and offset style

    图 2  弹性密封垫及其沟槽截面

    Figure 2.  Seal and groove section

    图 3  试验装置

    Figure 3.  Test device

    图 4  试验原理

    Figure 4.  Schematic diagram of test principle

    图 5  粘贴弹性密封垫

    Figure 5.  Pasted gasket

    图 6  振幅曲线

    Figure 6.  Amplitude curve

    图 7  渗水位置

    Figure 7.  Seepage location

    图 8  渗水形式

    Figure 8.  Seepage types

    图 9  水压变化

    Figure 9.  Water pressure changes

    图 10  水压试验结果

    Figure 10.  Hydraulic test results

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出版历程
  • 收稿日期:  2018-05-30
  • 修回日期:  2018-09-17
  • 网络出版日期:  2019-01-11
  • 刊出日期:  2020-08-01

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