Tunnel strain monitoring and numerical simulation based on BOTDR

QIU Hai-tao1; LI Chuan2; LIU Jian-ping3

doi:10.13873/j.1000-97872011.12.013

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Tunnel strain monitoring and numerical simulation based on BOTDR

更新时间：2025-09-11

- Tunnel strain monitoring and numerical simulation based on BOTDR
- Vol. 30, Issue 12, Pages: 78-81(2011)
- 作者机构：
  
  1. 北京科技大学土木与环境工程学院
  2. 昆明理工大学信息与自动化学院
  3. 昆明理工大学人事处
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872011.12.013
  CLC： U456.3
- Published：2011
- 稿件说明：
移动端阅览
[1]邱海涛,李川,刘建平.基于BOTDR的隧道应变监测与数值模拟[J].传感器与微系统,2011,30(12):78-81.

QIU Hai-tao1, LI Chuan2, LIU Jian-ping3. Tunnel strain monitoring and numerical simulation based on BOTDR[J]. 2011, 30(12): 78-81.
[1]邱海涛,李川,刘建平.基于BOTDR的隧道应变监测与数值模拟[J].传感器与微系统,2011,30(12):78-81. DOI： 10.13873/j.1000-97872011.12.013.

QIU Hai-tao1, LI Chuan2, LIU Jian-ping3. Tunnel strain monitoring and numerical simulation based on BOTDR[J]. 2011, 30(12): 78-81. DOI： 10.13873/j.1000-97872011.12.013.

摘要

基于布里渊散射原理的布里渊光时域反射计（BOTDR）是一种新型的光纤传感器。在介绍该项技术工作原理的基础上

以西南某隧道为实例

采用三维快速拉格朗日法

获得了隧道二次衬砌中应力和位移的分布规律

提出了隧道光纤的铺设方案、粘贴方式及安装工艺。讨论了一天内最大温差对应变监测结果的影响

并在不同时期对隧道内纵向光纤线路和某个绕拱线路的应变监测结果进行了分析。研究结果表明:BOTDR可以比较真实地得到隧道的应变

将其应用于隧道变形监测中是可行有效的。

Abstract

The Brilliouin optical time domain reflectometer（BOTDR）is a new type of optical fiber sensor based on Brilliouin scattering principle.The basic principle and features of the BOTDR are introduced

and taking a tunnel located in southwest China for example

the stress and displacement distribution in secondary liner are obtained using three-dimensional fast Lagrangian analysis of continua（3D-FLAC）method.Accordingly the laying scheme

installation technics

adhesive method of optical fiber in tunnel is put forward.In addition

the influence of daylong maximal difference in temperature on the monitoring results is discussed.Finally

the measurement results of the tunnel’s lengthways optical fiber line and some tunnel’s cincturing arch line at different period are analyzed.The results show that the BOTDR is a feasible and effective method for the strain measurement in the tunnel.

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references

基于BOTDR的隧道应变监测研究 [J]. 张丹,施斌,徐洪钟. 工程地质学报 . 2004(04)

BOTDR应变监测技术应用在大型基础工程健康诊断中的可行性研究 [J]. 施斌,徐洪钟,张丹,丁勇,崔何亮,陈斌,高俊启. 岩石力学与工程学报 . 2004(03)

光纤传感器及其在岩土工程中的应用 [J]. 马水山,王志旺,李端有,汤平. 岩石力学与工程学报 . 2001(S1)

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