基于BOTDR的白泥井3号隧道拱圈变形监测

丁勇 施斌 孙宇 赵永贵

丁勇, 施斌, 孙宇, 赵永贵. 2006: 基于BOTDR的白泥井3号隧道拱圈变形监测. 工程地质学报, 14(5): 649-653.
引用本文: 丁勇, 施斌, 孙宇, 赵永贵. 2006: 基于BOTDR的白泥井3号隧道拱圈变形监测. 工程地质学报, 14(5): 649-653.
DING Yong, SHI Bin, SUN Yu, ZHAO Yonggui. 2006: MONITORING ON THE ARCH RINGS DEFORMATION IN THE NO.3 TUNNEL OF BAINIJING WITH BOTDR BASED STRAIN MEASUREMENT TECHNIQUE. JOURNAL OF ENGINEERING GEOLOGY, 14(5): 649-653.
Citation: DING Yong, SHI Bin, SUN Yu, ZHAO Yonggui. 2006: MONITORING ON THE ARCH RINGS DEFORMATION IN THE NO.3 TUNNEL OF BAINIJING WITH BOTDR BASED STRAIN MEASUREMENT TECHNIQUE. JOURNAL OF ENGINEERING GEOLOGY, 14(5): 649-653.

基于BOTDR的白泥井3号隧道拱圈变形监测

详细信息
    作者简介:

    丁勇(1977-),男,博士,讲师,主要从事光纤传感技术在土木工程中的应用研究.Email: danpub@v ip.sina.com

  • 中图分类号: U456.31

MONITORING ON THE ARCH RINGS DEFORMATION IN THE NO.3 TUNNEL OF BAINIJING WITH BOTDR BASED STRAIN MEASUREMENT TECHNIQUE

  • 摘要: 白泥井3号隧道是一条山岭隧道,隧道出口段位于滑坡等地质灾害多发的危险区域,为了确保隧道安全,应用国际上先进的BOTDR分布式应变测量技术,对隧道拱圈截面变形进行了分布式应变监测。本文着重介绍了BOTDR在隧道内安装布设以及监测数据的分析过程,监测成果显示,在将近1 a的监测时间里,隧道拱圈基本保持稳定,只是在个别区域,如K84+508.2处拱圈截面的衬砌表面发生张拉变形,变形量在雨季期间达到最大,据分析是由于雨水入渗山体造成围岩压力增大,致使拱圈截面受挤压变形。
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出版历程
  • 收稿日期:  2005-12-14
  • 修回日期:  2006-02-21
  • 刊出日期:  2006-09-22

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